My boyfriend's ex-girlfriend is still close to his family. We will be attending his brother's wedding next week, he was chosen as the bestman and his ex was chosen as one of the bridesmaids. I know there's nothing he can do about it since it's not his wedding and i already talked about it to him. He said that his ex doesn't know her boundaries and wouldn't back out of the bridesmaid invitation even if her friends told her to do so. Is it normal to still feel bothered or bad about it? Should i let it go and accept that i'm just overthinking? Thanks for the advice ladies ❤️❤️❤️