I’m in a really hard position right now. I saw my wife’s brother cheating on his wife, and I’m not sure if I should tell her or not. I know for sure she will call him out, despite him being her big brother. I don’t them to fight but I also don’t like what he’s doing to his wife. I already know he’s not the best person in the world. In fact, he was bragging about some internet brides that he’s chatting with for fun and even asked if I wanted to get to know someone too. He’s really somewhat of a jerk. Do I tell my wife everything even if it means causing trouble between them and her brother?