So, before my fiance and I became engaged, we got along just fine and dandy, but now I'm finding myself avoiding her. My fiance and I are trying to keep a smallish (less than 100) wedding, of family and close friends as we are paying for everything ourselves. It started when she got a hold of our extra Save the Dates (after my fiance got some names/addresses from her), and started sending them out willy-nilly--to the neighbors, her friends, everyone in her book club, distant relatives, etc. When my fiance confronted her about it, saying the STDs were supposed to be ONLY for family and -very- close friends, she insisted that oh, they're not going to show up, blah blah blah. She invited almost 100 people! I hate to be a bridezilla here, but it's my wedding and I wanted to spend that day with people close to my fiance and I, not the mother-in-law...
Anyhow, we've just started getting our RSVPs and got our first 'no-no'--someone RSVP'd with an univited guest. Surprise, surprise, it's a friend of the MIL. My fiance called his mother and very gently asked if she could call her friend to let her know that there is no space for her friend. Well, MIL started going on saying well, apparently it's a very serious relationship, it's just one person, etc. before finally saying she didn't want to "be in the middle." The MIL was the one who invited her! We saw this friend less than two months ago, and there was no hint of her being in a relationship, let alone a serious one! I am fine with calling this person and telling them they cannot come with a guest (with the knowledge that they might not come at all), but I really feel like the MIL should be taking care this, especially because I suspect it will happen again. Am I wrong to feel this way?