Individuals who are in love frequently display emotional dependence on their partner, such as jealousy, fear of rejection, possessiveness, and separation anxiety.
A person in love may also want for emotional unity with their partner, look for opportunities to get closer, and think of their future together. The body experiences an increase in oxytocin when serotonin levels start to stabilize.
When someone is in love, they typically have a strong sense of empathy for their partner, feeling their suffering as their own and being prepared to give anything up for them.
One's everyday priorities may shift when they fall in love in order to match those of their partner. Another study by Fisher, presented in 2013 at the "Being Human" conference, revealed that people are drawn to their opposites.
When someone is truly in love, they frequently feel intense sexual desire for their spouse, but there are also significant emotional ties to this want: acute jealousy when one partner is thought to be unfaithful, along with a desire for sexual exclusivity.
For those who are in love, the need for emotional unity is more pressing than the urge for sexual intimacy. According to Fisher's 2002 study,
According to research by Fisher and her colleagues, people who claim to be "in love" frequently express that their enthusiasm is uncontrollable and involuntary.
Sadly, love doesn't always persist, and according to psychologists, the early, ecstatic stage of a relationship shouldn't continue longer than three years.