I'm very sorry that you feel that way. I was actually having a conversation about this type of thing.

I worked in the service industry a long time ago and I found that some people just feel the need to make others feel like crap. My theory is that some people are just so unhappy that the only way to make themselves feel better is to make others feel as bad as they feel.

If you need a break, then that's probably what you should do. Go on a vacation, do something nice for yourself, etc. Sometimes a break (or vacation) is best thing.