My boyfriend and I broke up a while ago. He has a friend that he's not super close to. They used to be good friends a couple years ago but now they are more like good acquaintances. After the break up, the friend and i started talking and after about two months, he asked if I wanted to go see a movie with him one afternoon. I went and we kissed. My ex is mad because he claims that his friend should have asked his permission to kiss me. I' m not dating the friend. Just kissed. So, did the friend really break a guy rule?