Need advice!

So right now my family is living at my fiancé’s parents house for for a few weeks till we get into our own house. His parents and I do not get along I always try to stay far away from the house to avoid conflict between them an I. But last night my fiancé and his mother got in a argument and then started going off calling me a f-Ing b*tch right in front of my kids. I was not even apart of the conversation... They do not respect me whatsoever ever as a parent and just as a normal human being. What should I do? Right now I don’t even say anything to them and still getting called inappropriate names in front of my children. I’m getting to the point where I don’t think my kids should see or be around people like that. Especially setting bad examples for them.

Need advice!