Well putting myself in your shoes, I understand why you didn't want to go. It would've been awkward for you, and you would've felt very left out when with them.
see Kaay a good friend would have brought someone for you, instead of begging you to sit there and watch their galantries. Personally I think u need new friends. That's fucked up to put someone in a situation like that and not give a shit about their feelings. Let them be pissed.