My MIL moved a couple of years ago from round the corner to 250 miles away.
She had good reasons, to be fair and we were as supportive as we could be (given that we weren't involved in the decision making process).
I have seen her once since the move, DH has seen her three times. We are meant to be going to visit her this weekend but I don't want to go.
My reasons:
I have a bad back and 6 hours in the car will cause me problems that will take ages to put right.
She's going a bit dotty and the conversation will be on a loop all weekend and will be about people we don't know, events we weren't at and places we haven't been.
She lives in a beautiful part of the country with interesting things to do, two of which are on my bucket list. However, she has said today she doesn't want to do either of them (or indeed anything).
So, should I bite the bullet and tell DH I'm not going?
I'm prepared to be told I am BU 
.