how would you feel?

y’all my MIL has the weirdest attachment to my BIL... it gives me the ICKKKKKK. and his girlfriend too.. which let me add that my MIL HATESSSSS my BILs girlfriend for no reason.

he’s the “baby” but still a 25 year old man nonetheless.. she still to this day calls him “the baby” and he is known as the baby by anyone in our town. like i said she has burning hate for his gf and i think it’s cause she’s got some weird feelings for him..? idk i don’t wanna be weird because she is not like that with my husband or her other kids.. just “the baby” but she constantly talks about how much she misses breast feeding him.. taking baths with him.. sleeping with him at night.. like it’s WEIRD. he had been growing his hair out for a few years and finally cut it and she was mad they didn’t save her a piece to keep..... like wtf if he was a young kid and she just recently stopped doing these things or it was a first hair cut then i could understand but she tells his girlfriend she misses doing this stuff with him. not even like oh i miss spending time with him i never see him since moving out.. it’s just full blown that she misses specific WEIRD things. it drives his gf crazy rightfully so and she always asks me what to do but i’m literally lost for words cause it just makes me feel like she’s got something weird going on idk what wtf would y’all do if you were my BILs gf?! i think i’d have to leave him cause that shit is weird