I suspect the answer to this is yes, but...
I have a wonderful DH, who is great around the home with housework and DS. DS is 19 months.
I used to have a good relationship with MiL, before i got pregnant and then it all got weird! She treats me like her daughter, but without any of the history and honesty that that relationship shoud come with. She patted my bump when i was 36 weeks pregnant and told me that this was 'our baby' and so was different to all the other babies that she sees around the place. Since then, she has been desperate to get her hands of DS and (in DH's words) wear him like a hat... She inadvertantly criticises everything that i do with him, and tells endless stories about how perfect her 2 children were when they were small - there were never any tantrums, never any sibling rivalry (22 months apart), babies potty trained themselves, all of childhood was sunny and full of flowers. She complains that she deoesn't have a relationship with DS, but whenever they come and visit she sits in the living room and reads the paper, or tries to get DS to play with the games she wants to play with. Her and FiL are still in their pjs at 10am, and seem horrified by us hussling them out of the house so that we can do something (anything) before we get to the whole meal time / lunchtime sleep routine...
Anyway. They live up north and they come down and stay about 5 / 6 times a year. I find these stays fairly hellish, but just get on with it, because what can you do? And pretty much everytime they visit, SiL comes and stays as well. She lives about an hour away from us, and i like her very much, but dont see why I have to have MiL's whole family in my house every time they come and stay. SiL has no significant other, is 36 and is unlikely to have children...
I have spoken to DH about this, and he has agreed that we can and will see them both seperately as i feel very excluded during these visits. Plus MiL is constantly backed up by everyone and i have to stand on my own against her if i do something that she doesn't agree with.
Anyway, Christams is coming and PiL are going to stay with SiL for xmas day in London. Then they are coming to us on Boxing day. i have said to MiL that she is more than welcome to come for Boxing day and stay the night, but that PiL and us have been invited to my parents for lunch on the 27th. Last night, MiL phoned, and then DH came and asked if SiL could come to lunch as well. This would mean that the 24 hours of DH's family in the house, suddenly has been stretched out until SiL will have been in the house for pretty much the entire stay (PiL are leaving at lunchtime on the 28th).
I just feel like this is another bloody example of MiL not respecting my boundaries and stretching things to suit her. And i'm really quite angry about it.
but then i have lovely DH, and he wants to spend time with his family, but he doesn't want me to be upset so is torn down the middle, and i feel really sad about that.
Am i being unreasonable to want SiL to leave before lunch on the 27th?
Good lord - apologies for the long post!