am I crazy?

So some times my boyfriends ex will just update him with random things in her life. Like is that necessary? I don't think it is. He's not part of her life anymore she broke up and cheated on him so why is she still updating him on stuff? They broke up to years ago! But last summer she broke up with the kid she cheated on him with cause she wanted to get back with him?? LOL like what kind of shit is that?? It's fine with me if they're cool and have no drama but telling my Bf you got your license?? Not necessary to me sorry! Am I wrong or?