[QUOTE=JinnKai]Decide what you want.
Don't want to be friends? Don't be.
Want to be friends? Then do it.
ITA
do you want to be friends with someone who cheated on u?is there a point to the friendship?if so then yes be her friend
if you are worried whom else she is friends with then u need to ask yourself why-can it really be that true of a friendship anyways if she is your ex, and also an ex whom you split up with because of a less than amicable reason?
id say carry on talking to her if yu want to but sod the issues!!