Would help if you listed specific ideas you don't think work

Also, keep in mind relationships are different, people are different
So (for example) while one girl might tell her boyfriend bug off and don't ever talk to me again she might really want him to try harder to prove 'his love'
While another girl might get more irritated and see his trying harder to get her back might just prove to her why she doesn't want to be with him any more.

So we can all write our experiences that worked for us and others. It is up to the one with the problem to pick and choose what might work best for them in their particular situation.