This is not a MIL bashing thread. I am genuinely not sure sure who is BU here and seek the opinions of MN jury...
DH's uncle is 90 on 9th May. His family are trying to organise a birthday do for him which will either be at a location around 1.5 hours away from us at a convenient central point for most people in uncle's immediate and extended family, or if uncle is not up to the journey, in uncle and aunt's home area about 3.5 hours away from us so would require overnight stay.
The problem is, the date being proposed is not one I was expecting (i.e. a weekend either side of the birthday date) and in the meantime I have arranged for my own elderly aunt and uncle (who live 4.5 hours away) to come and visit and have already booked train tickets for them.
MIL got into a terrible flap when she heard we already had plans and we have had various conversations about it. The first weekend (one before the birthday) is out because DH is away on an overseas trip, booked months ago. The second weekend is out because SIL's DP is on an overseas visit to an important family event of his own. The last weekend of May out for various reasons involving uncles own DC/GDC. I did query why SIL's DP had to be there but MIL insists that aunt/uncle want everyone to be there. I also suggested that DH go with our DC for the day if the do is held at the more local location and I stay home with my own aunt/uncle but no "everyone has be there". So then I tentatively suggested that I could see if my aunt/uncle were happy to change their plans and rearrange their train tickets for another weekend.
Plans still unconfirmed so have not spoken to my own aunt and uncle but now I'm feeling awful about having to mess them around. They are lovely people, no DC of their own. This trip to visit us is a very big deal for them and they will be very flustered if they have to change their plans and hurt I think that I haven't put them first and said they are the prior arrangement.
DH doesn't think it is fair to ask me to mess my family around and thinks either SIL's DP should miss event or he should go on own with DC.
So if you have got though all of this who is being BU?