MIL Visitations- WHAT?

Every since I've had my son. I've dealt with situations with my bf and his family. Pretty much b*tching, and moaning about what I do with my son. If they come around and he's sleep they want me to wake him up b/c they want to play with him (he's 6weeks?). Last time she came she threatened my bf about letting her have her baby, b/c I was spending time with him. This time my bf played the pity card about how she's never around (her choice) and that she's scared of me so she doesn't ask to see my son when she's around, she just takes him out of my hand and walk away. She told me that when she comes back for Mother's day, their going to spend the entire day together(?). I think this entire situation is very pathetic andmy bf is just as stupid as she is. I'm in strong consideration of walking out b/c I've had enough of the 2 of them. So they feel regardless of what I'm doing give her my child and basically go away. Is this a bunch of b.s. or what? Should I hit the road. Read my other ques.