I've moaned about SIL on here before but under a different name.
SIL and her husband NEVER tell us/ask us when they're going to visit, they either just turn up with with PILs or sometimes MIL will tell us a day before they're coming. This didn't bother me at first but since DS arrived our tiny flat has got smaller and DP and I struggle with lots of visitors (there's no where for us all to sit for a start).
Last month MIL told us SIL and her DH were coming with them (nothing from SIL) so DP had to say no not this time lets arrange something else so it would just be the four of us. SIL went on a rant on how difficult it is to get to us because their car can't drive long distances (this is not true!). DP also asked her to contact us when they're coming. SIL was silent on this request.
At PILS last visit we were told that at Christmas SIL and her DH would be coming too. Fine, we thought, thinking it would probably be the last time she relayed a message through her mother and it was Christmas, so big family meal would be nice.
On Christmas Day FIL called and told us that SIL's DH was on call so would need to use our internet and have a place to work as he would be bringing his laptop with him. Again, nothing from SIL.
DP and I were up past fecking midnight last night preparing our meal and this morning, five minutes before they head off, MIL calls to tell us SIL's husband can't come after all as he needs to be at the office. Nothing from SIL, not even a text.
I know I'm being unreasonable to throw my toys out of the pram and not cook the meal, but would WIBU to tell SIL outright to stop relaying messages through PILS and tell us herself about her and her husband's plans and cancellations?