Me and my ex broke up about 8months ago. He is a pretty bad person (I'm not saying this because he broke up with me )He has a friend I will refer to him as A.
So my ex constantly talked shit about A while we were together he called him annoying and cringe I didn't really know A at this time (I met him a couple of times but we didn't really had a conversation)
Today I had a big exam at my school and A took the exam as well. He saw me at the school hall and we started talking
We had a really good conversation and I realised he is a really nice guy.
He is still friends with my ex (although they are not that close as they used to be) and now I'm considering telling him that his so called "friend" is talking shit about him.
I don't want to do this as some kind of huge revenge at my ex I just feel like A deserves to know
Would this be too petty or should I do it?