My MIL has made it pretty clear since the day we met that she dislikes me. I haven't done anything to deserve this, with the exception of not being a WASP. She refused to participate in our wedding and has not acknowledged my pregnancy. I'm 10.5 weeks and she's known since I was five weeks. Basically I'm persona non grata with her.

Anyhow...DH is best man in his BFF's wedding next month out of town. MIL is close with the groom's mom and is also invited to the wedding. She has decided that she won't go to the wedding unless she can stay in our hotel room because she can't afford to get a room for herself. (Backstory - she blew through a huge divorce settlement from FIL and has spent very irresponsibly).

Any advice on how I can refuse to share a hotel room with her and not come out as the bad guy?