DH & I had planned to do a car boot sale to raise much need funds for Christmas and get rid of lots of junk! We were then going to take DC to see a Xmas event in our local town on Sunday (DC too young to know about this). This has been planned for a couple of weeks.
It's FiL birthday this week and one of our DCs. I've asked DH if anything was happening for his DF and he said not that he knew of but maybe we'd go and visit next weekend.
Weds, DH gets a call from MiL "inviting" us to go out to lunch on Sunday. He says we were planning to do a carboot but will check with me and is sure that it'll be ok for us to go.
I'm really pissed off with DH for not saying to MiL along the lines of would have been great but we have plans and had you told us sooner we'd have loved to come but now we can't but will see them next week. DH and I have been having relationship counselling and I feel let down by his response as I feel he hasn't thought of me and the children.
I am also annoyed with MiL.
To put this into context MiL has a history of being v manipulative (which DH has acknowledged) but in this case I think it's just the fact that she has assumed we will/be able to drop everything to do what she wants. It must have been planned as DH's sister is attending and she lives 100s miles away and is busy most weekends unless she has VAST notice.
So I am asking for advice, firstly in how to resolve the resentment I feel toward DH for not valuing our plans (and am I fair to feel this?) and what to say to MiL (without sounding like a cow or am I?). Am I over reacting?