Untitled

I love both my mother and my fiancee. However, they cannot get along. They have there days when they are nice, but it does not take long or much to get them pissing each other off. He has his own sense of humor that not many can understand, and it makes her angry because she does not understand it. At the same time, she likes to pick on people and just expects them to accept it and not say a word. He has this way about him, he has to complain about anything that annoys him. She has every right to nickname her grandson, but he has to make some comment. He wants her to be nice to him but he eggs her on. It makes me so angry. I want a peaceful home. not one filled with such frustration. They both need to grow up a little. I told her that she needs to not make some of the comments she does, like comparing him to my ex. She made the statement the other day ” This is my house” . Like she has the right to say what she wants when she wants and there is nothing that we can do about it. I love my mother so much. And none of her sisters or her have the greatest relationship with my grandmother, and i dont want that same relationship with my mom. How do i get the two of them to get along? I cannot pick between them. How do i get unstuck from the middle of this sticky situation?

Josh is 6 months now, and Oh how I love him. His smile, Laugh. The way he gets excited and jumps up and down with this huge smile on his face. His father takes him every Tuesday to his grandmothers house for the night. And that kills me. They deserve to see him, that i know. But when he leaves it is almost as if i fall into this funk that i cannot escape until he returns the next day. My mother says that it is not normal for a mother and child to be away like that this young. But how do i tell his dad that i dont want him away all night without sounding selfish? Or without it sounding like i dont want him over there?