Why do i leave when someone actually loves me?

I think you are true to yourself where you wish to reclaim your individuality as often and not be too dependent or reliant on someone.

In fact humanity must adopt this seasonal approach as I have found married couples living together become like siblings and lose the attraction as they get too habituated.

What you need to worry is what you do when you want them back and they are not available.

Perhaps you're feeling a version of imposter syndrome: perhaps you have doubts about whether you're capable of sustaining a loving relationship over the years, and feel like you're a phony for being in one. Perhaps there's even an element of empathy for the other person, where you tell yourself that since you maybe can't love him back properly, you're doing the right thing by setting him free.

Read @Lostlostlost and @Glassysky answers

They nailed it, once you figure why you're doing. Then maybe you can have a marriage that will last 60 or 80 years

It’s a defence mechanism

Maybe you don't think you deserve it.

Ur the problem

@Lostlostlost to what