The other day my FI asked if we are having a rehearsal dinner and I responded that traditionally his parents would host it, then added that I'm not sure if him and I could afford it plus everything else. His parents are divorced and hate each other and neither one of them has said a peep about hosting a rehearsal dinner. I'm not sure what to do.
Re: rehearsal dinner trouble
Keep in mind also that the RD doesn't have to be a formal affair at a restaurant. Lots of people go to pizza places or host something at their house or in a community center or park with hamburgers and hotdogs. We actually had our RD at a laid back BBQ joint in town and it was a blast. The RD definitely does not need to break the bank to be a good time.
Don't ask anyone to host your RD either. If no one steps up, just plan whatever you and your FI can afford.