My mother could only afford a small amount to contribute to our wedding since she is going through chemo for lung cancer. My FMIL is VERY traditional and initially told us when we got engaged 12/2014 she would give us x amount for the wedding and pay for the rehearsal dinner as well. Now she has Changed her mind and is saying " traditionally the brides parents pay for the wedding and the grooms parents pay for rehearsal dinner, but since your mother is only giving x amount that's all we're going to contribute total, and you can use that for the rehearsal dinner." Not to sound ungrateful that they're giving us money we really appreciate it, but we were not expecting the added expense. She wants to invite all her side of out of town family to the rehearsal dinner and we didn't budget for this! I want to throw a back yard rehearsal and order pizza, keep it casual and cheap. Is that terrible? Is it awful to ask her to pay for anyone she wants to bring extra that's not in bridal party?