Ok so in May I got a text from DB asking if I could do him and SIL a favour. They wanted me and DH to babysit for them in August. The babysitting is all day on a Friday so he and his wife can attend a wedding. They are both teachers so are off work already. They live about 100 miles away. Usually SIL's parents would babysit in these circumstances as they live within minutes of them but they are away on holiday on this occasion. The text went on to invite me and DH to stay for the weekend and then said "if you and DH want to go out on Saturday night we will look after kids ( ie mine and Dh's kids) and shout you a meal."
DH and I both work FT Mon-Fri so doing this favour means using a day's annual leave and driving 200 miles round trip but I was happy to do it because they have never asked us before, we like to visit them at least once over the summer anyway and we were enticed by the idea of a night out.
Anyway, didn't hear anything more about it until I got a text from SIL last week asking if we wanted to come down on the Thursday and we could take all kids out for a day to local farm/park place. I said sorry, no holiday left, we would be coming down Thurs evening. She hadn't mentioned the rest of the weekend so I asked if we were OK to stay on Sat night. She said yes fine but no mention of babysitting or meal. Said that DB had already planned to take DN to pictures and we can tag along if we like. So feels like they hadn't planned on us staying which surprised me a bit.
In a later text she says if we want to go out for meal on Sat night they will babysit ( but no offer to pay). I ask for recommendations of places to eat locally and she goes to huge trouble to send me comprehensive list of local eateries ranked in order of budget and with comments about what she and DB think of them which I think is very kind. In each text she sends she has made a big point of thanking us for "saving the day" as otherwise they would not have been able to go to wedding.
This is all very lovely. I AM looking forward to seeing them and we all get on really well but AIBU to feel a bit miffed that offer of free dinner appears to have been surreptitiously withdrawn? We would have gone and babysat anyway - like I said they are family and they don't ask regularly and we had already planned to visit over the summer, but would have gone on a weekend and saved annual leave for other stuff ( like school carol service and harvest festival which I will have to miss now).
DB ( who made original offer) seems to have gone very quiet over all this and I am wondering if SIL even knew about offer of dinner. DH says it it typical of my family and that he never expected the free dinner would come to anything. He's probably right. So AIBU ?