My MOH was my roommate in college, and I've met her family a few times. We've always joked that our families "matched" because they both have four girls spaced two years apart with my MOH and I both the second child. They're nice, I like them, but I am not close enough to them to invite them to my wedding where most of the 150 guests are my large family.Anyway, they recently visited my MOH for a few days, and they took me and FI out to dinner one night. We were talking about lots of stuff, and my MOH's mom kept asking me about wedding details. I kept trying to steer the discussion away from it since I wasn't going to invite them, but she was pretty persistant. At first I thought she just wanted to know details since none of her daughters have been married and she's a pretty nosy person, but she eventually asked how long the ceremony is going to be. I told her that it would be about an hour since it is Catholic, and she said, "That's okay; we just went to my daughters' former piano teacher's wedding, and it was a long Catholic ceremony too."I was like, WTH? It sounded to me that she assumed the whole family was invited. To make matters worse, they were only invited to the ceremony (and not the reception) of said piano teacher's wedding, so she seems to think this would be acceptable for my wedding (which is NOT).I'm not going to invite these extra six people to my wedding because I just don't have the room or money. How should I do it though? Should I subtly let MOH know, or should they find out through a lack of invitation? My MOH is VERY close with her family; she currently lives with her older sister, and her mom and sisters call her easily five times a day. I thought she already knew that I wasn't going to invite her family, but now I'm not so sure. WWYD?Cliff notes: MOH from large family, MOH's mom recently hinted that she's expecting an invite when I'm not intending on inviting any of them, wondering if I should say something to MOH or not.