This age-gap in a heterosexual relationship has been widely accepted by the society which often pushes women to marry men older to them if not the same age.

However, for the first time, reverse age gap relationships are on the rise with older women wanting to pair up with younger men and the other way around.

This has sparked curiosity among experts to know the psychosocial reasons behind this shift.

Once unconventional, such connections are now becoming the new normal and are no longer raising brows.

The changing needs in relationships

Romantic relationships in the past were built on survival and security.

To fight for existence, roles were precisely gendered, making man a provider and asking a woman to play the nurturer.

However, increased stability and life expectancy is pushing the world to slowly move from being survival driven towards self expansion and growth, blurring the older expectations.

This could be well illustrated with Maslow's hierarchy of needs which proposes that human needs come in a form of hierarchy starting from basic needs to self actualization.

Once a basic need is partially or fully satisfied, an individual is motivated to seek the next on ladder.

While the lower needs, also called the deprivation needs, included hunger, food, sex and security, higher needs are more focused on reaching one's full potential, both physically and mentally.

Speaking to DH, Dr Pavitra Shankar, a psychiatrist at the Aakash Healthcare (Dwarka) said: "Historically, relationships were based on individuals needing security from another. Now, many women want to experience personal growth, companionship, and adventure with their partners."

The expert highlighted the evolving nature of needs in romantic relationships which are not limited to physical security alone.

Inclusion of others into the self

A psychological model proposed by Arthur and Elaine Aron pushes the tendency of the mind to grow through deeper connections.

The self-expansion model proposes a person chooses to include another person's values or beliefs into their self to enhance their own experience of life or to live newer experiences through their eyes.

The partners in an emotionally intimate connection often integrate each other's habits into their personality.

For instance, a woman staying with a man who loves dogs will eventually turn herself into loving dogs.

Likewise, women in their 30s or 40s who have established financial security for themselves and are sure about their emotional needs will want to explore aspects missing in their life. Sometimes, it could be missing curiosity or spontaneity in their everyday lives.

"Often, younger men provide a sense of energy, openness, and curiosity that corresponds well with a woman's new expectations in a relationship," said Dr Shankar.

With gendered roles getting blurred, there are also changes in the distribution of power. Younger men are also slowly drifting away from the stereotypical expectations of manhood.

"Younger men today generally feel more at ease about expressing their emotions and sharing responsibility for the practical and emotional aspects of the relationship. As a result, the balance of power in these relationships has shifted toward mutual understanding, support, and cooperation, rather than following a prescribed set of gender-defined roles," added Dr Shankar.

Grounded and alive

The values associated with an older woman: clarity, emotional awareness and financial independence are becoming more desirable.

As per Psychology Today, when an older woman enters a relationship with a younger man, both can contribute to it with complimentary traits. This can make the relationship both grounded and alive at the same time.

"Older partners may provide stability, perspective, and experience; whereas younger partners tend to offer spontaneity and flexibility. Together these two elements create a relationship that feels both stable and full of life," said Dr Shankar.

Movement towards emotional fulfillment

As per the expert, men and women are trying to break free from outdated belief systems that have held them back from an emotionally fulfilling life.

Self-confidence and leadership qualities in women, earlier viewed as a deconstructive social trait, is now being admired.

Likewise, as per a study, women between the ages of 45 and 60 are becoming more attuned to their physical needs.

"The rise of reverse age gap relationships reflects a movement towards emotional connection, compatibility, and shared values rather than adhering to established, outdated ideas of an ideal romantic connection," said Dr Shankar.

As per a study published in the National Library of Medicine, there is a link between age-gap marriages and male mortality. In earlier times, men were motivated to marry a younger spouse for their physical needs to be taken care of in the older ages.