My father's speciality is to offer something lovely - and then when arranging it, to pretend that I am making some sort of outrageous demand on him. I'm sure more people do this than my father, and it must have a name.
He rang me specifically a few weeks ago to say 'I will come and stay so that you and dh can go away for a little holiday and I can spend time with my grandchild'. This is lovely and very welcome. Now I am trying to arrange dates so we can book something. That's not outrageous, is it? His responses have been really terse make it clear that I am demanding something from him and he will 'fit me in if he can but not to make it too long'.
He used to do this all the time, and it wasn't until I moved away that I realised that I was not a demanding, greedy, ungrateful person. It's like he would set up situations in this way just to give himself the opportunity to point out shortcomings that I wasn't even trying to have
I used to find it extremely confusing as a teenager. He would offer to take me clothes shopping and talk about how much he'd spend, then later if I asked him about it he'd accuse me of being grasping and lazy and how he had to work for everything he bought himself. I was about 13 and clothes were such a sore point anyway as I had hardly any. I would be so upset as I would never ever have demanded anything like that from him, he had started the conversation in the first place. 
I'm an adult now and I can see that things have got twisted (and the final outcome doesn't matter, I'm not in the least bothered by not having a weekend away) but can you reassure me that this isn't all that normal? It's so easy to go back to being a teenager when your parents slightly wrongfoot you (after some years of behaving quite normally, too).