S.B.
Hey C.! Tough issues. Your mother-in-law is meaning to act out of love and care for her grandchild, so try to keep that in mind. People speak out of what's in their own heart. She obviously has some issues with fear and acceptance. Don't take it personally, certainly. It hasnothing to do with you, but her. I've found that when my mother-in-law FEELS accepted and loved by me she is very open to criticism and honest comments. Try to appreciate and encourage her in the things she does well. Then you can ask about the other stuff. "Hey, Mom, explain to me why you're worried about him crying?" Really listen and try to hear what she's saying behind the words she uses. Try to get her to see maybe how illogical her fears are (let her come to the conclusions) and assure her you are doing your best, love the child, and love that she wants to be a part of his life too.
Sorry this is so long. I've worked through a relationship with my mother-in-law, who is so different from me and many of the same issues. We have such a terrific relationship now and she is the BEST grandma! She really loves my kids!
Pray for wisdom and patience with her!!!