Many years ago, a very wise person told me...."Just because 'everybody' says something is 'so' doesn't necessarily make it so; it could just be that all the fools are on the same side."
You wrote, "...I just...have trouble staying angry at him (because that's what everyone tells me I have to do) to get over him..."
This could be a perfect example of what that very wise man said. Just because 'everyone' tells you that you have to be angry with him to get over him, does NOT make it true. I've usually found that when using this method, then when 'over' the other person, I then need to get over the anger.....
I'll just be the minority opinion (perhaps a voice of reason...?) here and tell you that one does NOT need to be angry with another in order to get over them.........honest.
(o:
NoelleR