I really am at my wits end with my SIL...she is very manipulative, controlling and is generally basically a bully. Long story short, went out to dinner last night with in-laws family at a restaurant of SIL choosing, disregarding the fact we have a 4 month old but whatever is more convenient for her (she has no children) it was a while away from where we live. Baby went to sleep late and had been a bit cranky most of the day and was a nightmare to get to sleep tonight. She did have a good afternoon though. My baby had been passed around to in-laws family members which I am okay with some of the time. One of them (in-laws Aunt) has seen a newborn baby at another table at this restaurant. She went straight over and picked up this newborn and rocked him. I was quite shocked. Anyway SIL can see that I don't agree with this. Aunt comes back to pick up my baby and SIL says to aunt "oh go take the baby over there to those people, go on walk with her to them, show her to them". I'm sitting at the other end of this giant round table at this restaurant, her knowing I can't grab my own baby, I say to my partner "no I don't want your aunt doing that, I don't want our baby taken over to strangers". He went to get up and get her. Meanwhile SIL is sitting across from me with this real satisfied smug look on her face.
There are so many other things that she does, I could go on and on. She treats me like a fool as if I don't know how to care for my own baby. She constantly questions me with "when did she eat last?" "Her nappy seems full, when was her last change" (her nappy is fine, just SIL being a know-it-all) "when was her last bath?" Also googled and researches anything I purchase for my baby to see if it's safe or not. I know it's not because she cares it's because she is constantly undermining me. Also any time my baby is upset or irritable she automatically assumes she's hungry (apparently I don't feed her enough which is rubbish) I would go on and on but it'll go forever lol. I've had to post anon because SIL doesn't have Facebook, she goes into my account through her phone to stalk people or whatever she does. I've today just changed my password and am now awaiting the fury that will follow with it.
I'm just wanting to know if anyone has been in shit situations with nasty siblings-in-law? How do I deal with it? Am I over reacting?
Ps - SIL doesn't care much for my partner or anything he has done successfully, so long as we are beneath her and not successful with anything that is equal to her, she is happy. I know it's pretty mental.