Maybe a simple "mind-fuck" would do as the word you're looking for? As for your relatives: changing the phone number makes sense, but also just saying no, and being consistent with it - knowing you're not doing anything wrong if they're treating you the way you're describging - should work. Again, amazed at your capacity to solve problems and your overall level of resilence. Hang in there, and keep fighting!
you can carry all the tools you need to repair your car in metal or wooden box in the trunk of your car so that you can be ready next time if your car breaks down again.
