You won't care if they're dating someone else.
You don't feel anything when they flirt with other girls/guys.
you dont
I'm not really a fighter but I'll fight for what i love..
Well then this person isn't the best for your ex if she has to do that to get into your ex's life. Just tell him that politely and that you just want the best for him. But first, be sure that that's really what happened.
he cant really like you if he is your ex he will be trying to get back with you then
if you know that then why dont you get someone else that really likes you that would never cheat on you
Ask him.
you know that your over him/her if you realy dont think about them a lot.
you know there over you if they flirt or date other guys
well, if youre ex still likes you, then get back together. it also depentds, who is fighting, you and youre ex, or you and youre current lover??
If you really like the guy go out with him.You and your ex are over...
Obviously you are not true best friends if you're considering giving it all up for some guy. Best friends will always come first over anything else.
Tell him that she probably has moved on and he should to its not the end of the world but if he says he still loves her then try talking to the ex to become his friend at least but if your dating him and youre made cause hes not over her then just say that you understand every one goes through that and comfort him to let him know that you love him now. Hope that helps.