Cars always seem to need fixing when you least need the expense. But it's so much better than breaking down on your trip. Been there, done that.

I find it helpful in dealing with guilt trip people to try to understand that I am not responsible for their tripping of the guilt. They do that all by themselves. I try to listen respectfully, but rather objectively, and let them have their say. When they are finished, I smile, give them a hug, and go about my life as I need to. Perhaps this can help you in dealing with your mom. Staying one night with the parents might be a good bone to throw, but only you know.

Relax and enjoy your visit with the family!