Letter 1 is from a young woman whose other thinks LW needs plastic surgery. "My father doesn't get involved in family issues". Huh? I think that means that he has been bullied into submission by this hag. Don't let her do it to you. Find someplace else to go! Hang on until you're no longer dependent on them.
Video is from a woman whose best BF in the world has a cuckold fetish. It creeps her out. "Is this common among men?" This is beyond being GGG. So you and he need to find out if it's a dealbreaker.
Letter 2 is from a woman whose husband's parents divorced two years ago due to his mother's infidelit. He's taken it very hard, but is now again on good terms with his mother. LW has no respect for her. How can she let go of the grudge?
I say that if there's anyone in the family who can hate this woman with minimum damage, it's LW.
Prudie says to think of MIL as the future grandmother of LW's kids. OK.
Letter 3 is from a woman who has a wonderful 7yo stepson. The kid's mom is very competitive about presents for the child; Her husband goes over the top, and they can't do the same for the children she has with him.
Ignore the ex. Prudie says ignore the ex. We all say, ignore the ex, and convince your husband to do so too.
Letter 4 is a follow up from the woman who thought her MIL was poisoning her. Turns out she was, the husband knew, and took his mother's side. She has DTMFAed the guy.