Insensitive...

I am almost always amazed at how some people who have hurt you in the past can think that everything's fine and that you're still friends. Moreso, people whom you consider as exes (and exes from a not so nice separation) can be so casual in dealing with you like nothing have happened. Yes, I agree that I should have already moved on. And don't get me wrong, I have. It's just that exes are exes.  They are not meant to be befriended. You can forgive them but you have to forget them completely. Should I just remove him from my Facebook friends list?