What does it mean when two people can't let go of each other?

[Anonymous]

It means they truly care about each other, and are subconsciously clinging to the hope that their situation which doesn't permit them to be together right now... will hopefully change, so they can find a way to finally be together

At this present time they would have no choice but to accept the reality of their situation.

[kaylaS91]

That at least one of them is holding on for nostalgic purposes. Or is hesitant to move on because it would result in their pride taking a hit.

[xiaoli]

Means between them is about to end, you worry, in the end only less than half may be you think, don't go to plan the feelings between two people, in a way to keep self, that is right.

[gapminder]

They're young and horny