Try to talk to her.. like what you've said you're already over them.. so, i guess it's not a big deal for you anymore. Just be casual.. if she wants to be your friend but you don't want to..just be honest with her. Hope it helps! Goodluck! =)
Talk to him personally and confess what you really feel about him. Being real to the person you like/love is not a mistake. Just be honest.. if he tell you he doesn't have the same feeling towards you.. then that's the time to move forward.
it depends on how you guys broke up.
when you're the one who ruin your relationship.. just give her time to think. when you know you guys are already okay.. talk to her.. heart to heart.. whatever it takes at least you've done your part.