Who the heck cares if he loves you or her. You are better off without him period. No, no buts, you didn't give us much detail so I am basing it completely on what you said. He is unstable, you do not want to risk having a family and KIDS and have him sleeping around with his ex or leaving you to fend for yourself and your future sons/daughters. Any idea how difficult of a time single mothers go through? You shouldn't allow yourself to be put into one of those situations. There are so many guys out there, one of them will stick with you and care for you the way you wish it.

Sorry but this guy doesn't love you. If I were you I would dump him and find another.