One of my BM's recently broke up with her boyfriend of many years. She has already started seeing a new guy, but they aren't dating. For some reason, she said they aren't going to start dating until June. Makes no sense to me. My FI and I decided we aren't doing the whole plus one thing if they aren't in a serious relationship.. And I don't want to make any exceptions. However, my BM decided to ask this new guy if he wanted to come to the wedding and already booked a hotel room for the both of them.. Before she asked me anything about bringing a date. (The BM is temporarily living with my sister and that is how I know all of the information before the BM asked me anything.) Today she finally asked me if she could bring a date and I told her that we are only inviting people if they are in a serious/long term relationship. She text me back saying they have been talking for a couple weeks and will be dating for a month before the wedding, so it will be serious by then. And she kept texting me saying how she already booked a hotel room and she won't have anyone else to hang out with at the wedding. It sounds like she is trying to guilt me into letting him come. I told her I would talk to my FI and get back to her about it soon. I know I want to say no, but I'm not sure how to politely tell her that I don't want him to come.