“It seems as if everyone is angry at me lately for something I had done in the past or something I ha asdfadsf ”

It seems as if everyone is angry at me lately for something I had done in the past or something I had never even done. My girlfriend has a strained relationship with a friend because the friend does not like me for reasons stated in the first sentence. I've extended the olive branch, but there continues to be arguing. What should I do?