You used the term "them" when this is over a girl? did your girlfriend leave you for your best friend/ or friend? if so its more you being mad at yourself for not being able to deal with it so casualy as they seem to be.
if this is the case i wouldnt want to deal with that situation anymore myself and would just let them go -and keep a lose connection with any 3rd party friends that are involved (thru association) for awhile until the smoke clears -
then you would be able to see who your friends really are. (i would assume ) who would want to hang around to see there "ex" sexing up there best friend/friend(s) anyhow? unless your into that sort of thing
