Why do serious relationships end in a breakup?

Many people fall in love and think that their partners are the ultimate ones deserving of love and affection.

They give themselves up completely to their partners and many times totally due to selfless reasons.

Still, breakups happen and hearts are broken.

In Economics, there is a principle called the theory of diminishing marginal utility.

According to this theory, the more a consumer consumes a certain commodity, the less is his preference to consume the same commodity.

Can this principle be applied to love?

I think it can be.

The more love is showered by a person towards his or her partner, the lesser its value becomes over time.

Over time, the utility of love can vanish so much that a partner desires none of it.

In my view, this is the reason why even serious relations can end abruptly.