the point of time we have to stop

Last night, I asked my father a question from my friend. 

The question is that : you should not get yourself stuck in someone's love, that just like push yourself into the hell.

Isn't it?

In some extent to my knowledge, I should agree this advise. But father said, the most important thing is we know it is time we have to stop recalling the love that had left. People treasure the lover who had gone, because he didn't rule that is when it is at a point of time , he should to stop.

I must agree , and try to stop.