Is it wrong to not let MIl have LO every week?

Then it's really a husband problem you have. He is more bothered by upsetting her than upsetting you. I would suggest if she messages you, you tell her you'll pass it on to your oh. Ignore the requests for babysitting. If she ramps the complaints up, pass them on to your oh. Ask how he is going to solve it. His mother, his problem. Easier said than done, I know.

This all sounds quite familiar, did you post about a similar situation before?

Everyone will post the same response. No you are not being unreasonable or selfish, this is your child if you are uncomfortable about your m-i-law's ridiculous expectations, and they are, then you have to make that clear to her, in fact her son, your partner should be telling her. why isn't he?

The fact of the matter is you are not alone, these situations come up time and time again, more so on MN. Seeing a grandchild 5 times a week is an awful lot, excessive if, you the mother feel under pressure and stressed out on those occasions. It's only reasonable to leave a young grandchild, and at 18 months, she is not much more than a baby, overnight if both parties are happy with that, clearly you aren't and your judgement and feelings are paramount. As for her being rude to you, I'd just cut off contact for a while, she can't come into your house if you don't answer the door.

You are being bullied, once again get your partner to tell his mother to back off.

Good luck.

Your child your rules Abbie you don't mention how your husband feels about all this. You need to decide what amount of time you want your child to spend with his parents together and stick to it.
As midgey said don't let her bully you.

My partners a bit soft? Mil has definitely been telling him how she doesnt get to see LO enough, thay she never gets to babysit etc. So whenever I'm tierd or want to go for a walk, have a day out.. he just says, take her to see MIL instead. Hes not very helpful he just goes along with everything and doesnt care to listen to the issues I have.

What does your partner say to his mother's demands?

I think you've answered your own question really havent you?

We dont really know the people involved, only you do, so you must make the decision.

You do not need the permission of unknown grannies to put your conscience at peace.

Grandparents have no rights over their grandchildren! Don’t let her bully you.