In the modern world of love and connection, we often hear terms like "seeing someone," "dating," and "being in a relationship." These phrases, which may seem interchangeable to some, actually represent different stages in the romantic journey. Each stage elicits unique emotional and physiological responses, driven by complex biochemical processes that influence how we feel, behave, and connect with one another. In this article, we'll explore the subtle distinctions between these stages, examining the underlying biochemical mechanisms that differentiate "seeing someone," "dating," and "being in a relationship."
The initial encounter: 'Seeing someone'
"Seeing someone" is typically the earliest stage of romantic interest. It represents a casual and exploratory phase where individuals meet, spend time together, and assess mutual attraction. There is no formal commitment at this point, but the potential for something more exists. At its core, this stage is marked by curiosity and intrigue.
Biochemically, when we first meet someone we're attracted to, our brain is flooded with chemicals associated with excitement and anticipation. The primary neurotransmitter at work here is dopamine, often referred to as the "pleasure chemical." Dopamine plays a central role in the brain's reward system and is released in response to novel and pleasurable stimuli, such as meeting someone new. This is why initial encounters with a potential romantic partner often feel exciting and exhilarating.
At the same time, another powerful chemical, phenylethylamine (PEA), comes into play. PEA is known to create feelings of euphoria, heightened energy, and focus. It's often referred to as the "love drug," and it's responsible for the fluttery feelings we associate with infatuation or attraction. The combination of dopamine and PEA creates a cocktail of emotions that keeps us wanting more, fuelling our desire to continue seeing the person and get to know them better.
However, it's important to note that at this stage, the connection is still fragile. The brain is essentially in an assessment mode, deciding whether this person is worth pursuing further. Norepinephrine, a stress hormone, is also released during these initial encounters, which can explain the nervousness or butterflies we feel when meeting someone new. This hormone is involved in the body's fight-or-flight response, which means we're physiologically alert and attentive to every detail of the interaction.
Moving forward: "Dating"
When the interaction progresses beyond just seeing someone occasionally, and the individuals start spending more consistent time together, we enter the realm of "dating." Dating is a more intentional process of exploring compatibility, emotional connection, and shared values. It is often more structured than just casually "seeing someone," and typically involves regular outings, conversations, and the development of emotional intimacy.
From a biochemical perspective, the transition from "seeing someone" to "dating" is marked by an increase in serotonin levels. Serotonin is a neurotransmitter that contributes to feelings of well-being, calmness, and emotional stability. In the context of dating, serotonin helps to temper the intense highs of dopamine and PEA, allowing individuals to form more stable and lasting connections. Serotonin helps us feel more secure in the connection and less anxious about where things are going, which is crucial for moving from infatuation to deeper emotional bonds.
As dating progresses, another hormone, oxytocin, becomes more prominent. Oxytocin is often called the "bonding hormone" or the "cuddle chemical" because it promotes feelings of closeness, trust, and emotional intimacy. Oxytocin is released during physical touch, such as hugging or kissing, but it's also released during emotional bonding activities, like sharing personal stories or engaging in deep conversations. The more time people spend together, both physically and emotionally, the more oxytocin is released, helping to solidify the bond between them.
Interestingly, oxytocin can also increase levels of vasopressin, another hormone involved in bonding and long-term attachment. Vasopressin is more active in men and plays a key role in promoting monogamous behaviours. It helps to foster feelings of protection and commitment toward a partner, which are essential for progressing from the dating phase into a committed relationship.
However, despite the increasing intimacy, dating still carries a level of uncertainty. The brain is constantly evaluating whether the other person is a suitable long-term partner. This is where endorphins, the body's natural painkillers, come into play. Endorphins help to create feelings of comfort and safety, which are essential in forming a secure emotional connection. The release of endorphins during positive interactions helps to reinforce the bond, making us feel happy and relaxed when we're with the other person.
Deepening the bond: "Being in a relationship"
When individuals decide to make a formal commitment to each other, they enter the stage of being "in a relationship." This stage is characterized by emotional investment, exclusivity (in most cases), and long-term planning. A relationship involves deeper emotional ties, mutual support, and often the desire to build a future together.
At this stage, the brain's biochemical processes shift from the initial excitement and novelty of attraction to the stability and security of attachment. The role of oxytocin becomes even more pronounced in this phase. As a relationship deepens, oxytocin helps to maintain emotional closeness and trust, which are critical for the longevity of a relationship. Couples who have high levels of oxytocin often report feeling more satisfied and connected in their relationship.
In addition to oxytocin, long-term relationships are also influenced by endorphins and serotonin, which create a sense of calm and contentment. While the initial excitement of dopamine may fade over time, these chemicals promote feelings of security, loyalty, and long-lasting happiness. This is why couples in long-term relationships often describe their connection as feeling comfortable or familiar rather than intensely passionate.
However, it's important to note that long-term relationships require effort and maintenance to keep the bond strong. The brain is still responsive to novelty and excitement, which means that couples need to find ways to keep their relationship fresh and engaging. Research has shown that engaging in new and exciting activities together can stimulate the release of dopamine, helping to reignite the feelings of excitement that were present at the beginning of the relationship.
Another critical aspect of long-term relationships is the role of trust. Trust is closely linked to the release of oxytocin and vasopressin, which help to reinforce feelings of safety and security within the relationship. Trust allows individuals to feel confident in their partner's commitment and reliability, which is essential for the emotional stability of a relationship.
Navigating challenges: Biochemistry in conflict
It's also important to understand how biochemistry plays a role during conflicts or challenges in a relationship. When disagreements or stressful situations arise, the body responds by releasing cortisol, the stress hormone. Elevated levels of cortisol can make individuals feel anxious, irritable, or defensive, which can lead to negative interactions and emotional distance.
However, resolving conflicts in a healthy and constructive manner can help to repair the relationship and restore positive biochemical balance. The release of oxytocin during reconciliation or positive communication helps to rebuild trust and emotional connection, while the reduction of cortisol allows both partners to feel more relaxed and secure.
In contrast, unresolved conflicts or chronic stress can lead to a breakdown in emotional connection, as high levels of cortisol inhibit the release of bonding chemicals like oxytocin. This is why prolonged stress or conflict can cause relationships to deteriorate over time, leading to emotional distance or even separation.
Understanding the Biochemistry of Connection
The journey from "seeing someone" to being in a committed relationship is a complex process, driven by a range of biochemical mechanisms that influence our emotions, behaviours, and perceptions. Each stage of the romantic journey-whether it's the initial excitement of "seeing someone," the growing intimacy of dating, or the deep emotional bond of a relationship-is governed by different chemicals that shape our experience of love and connection.
By understanding the biochemical processes that underlie romantic relationships, we can gain insight into why we feel the way we do at different stages of connection. This knowledge can help us navigate the complexities of love, allowing us to build stronger, healthier, and more fulfilling relationships in the long term.
In the end, love is not just a feeling-it's a biochemical process that evolves and deepens over time, shaping our most meaningful human connections.
Renald Blundell is a biochemist and biotechnologist with a special interest in Natural and Alternative Medicine. He is a professor at the Faculty of Medicine and Surgery, University of Malta.
Photo: AI-generated image created by Prof. Blundell