im trying

I try to do something nice, like taking the kids to a family fun center for bf's mom can have a day to her self, and the only thing she does is bitch and yell. I spent all day on a sprained ankle taking care of her kids and she juss yells. Yells about pizza, soda, jackets, everything. Why can't we get a day where she appreciates what me and my boyfriend do for her...