Only read if you really are in pain and feel there's no chance left...

I read in a scientific article that love is only dopamine, a chemical in your body that is as addictive as cocaine. When you are going through a break-up, you suddenly lose the dopamine your body has become dependent on and you suffer "withdrawal". Nicotine and cocaine also release dopamine in your body, hence the need to go back for more. This explains why rebounding in relationships is so common.

Basically, once your body no longer craves the dopamine, you are free to search and love again without rebounding.

In other words, time really does heal all and he is replaceable.