Imagine this. You've just picked up a new spark. You've got interesting and romantic exchanges for months on end.

It's all fine one day, then, overnight during a trip abroad, it's over. As cold as ice. Months of (emotional) investment gone with a blink of the eye. Probably moved to another.

Can't see any logics on why you would waste so much time on a person just to trade him/her in the second a new option arrives, or am I just getting too old for this bullshit?