[Xero]

I think you should wait a bit before you tell your boyfriend.

Try to solve this issue your self first. Think of all the mean and nasty things he did when you where with him every time you think about him. This will get you to look at the negative aspect of things rather that why you are crushing on him.

I think the only reason you are thinking about your ex is the "what if" factor. That is what is making you think about him and how things could have gone. Once you notice this is just crushing/lust for the other person you will notice that your current relationship is more important.

Just take some time and think about it before you tell your boyfriend. It might be better off if you can wait a bit of time to fix it your self.