I need some help on how to diffuse some tension between my MIL and me. We live in Texas, but our wedding is going to be in Michigan, where I grew up. My MIL has been very stingy on the topic of our budget stating that the brides family traditionally pays for everything, except the rehearsal dinner. She was also very quick to give me a list of 150 people she wants us to invite to the wedding. Anyways, we turned to her asking about her hosting the rehearsal dinner, since she has told us multiple times that is all she is traditionally responsible for, and she says, she can't because our wedding is in Michigan and not Texas. I recognize that she is paying for transportation up to Michigan, but that amount of money doesn't come close to what my FI and I have spent on the wedding, or the amount of money my family has spent on the wedding. Everytime we see her, something comes up about how I'm being selfish, and how cost shouldn't be an issue for my family (she thinks my parents are rich... HA!). My MOH has been helping me diffuse alot of the situations, but after the email she sent me today about how she thinks rehearsal dinners are a tradition in Texas but that I need to pay for it, I'm ready to lose my sanity of go off on her. What do I do?