Oh how I sympthasise. I have moved away from my middle son and am now living closer to my eldest. I do a lot of childcare for my eldest - which I am paid for - as it prevents me from taking the part time work I would otherwise have to do till my state pension kicks in. That is not the problem. The problem is that my middle son feels that he is not getting all the free childcare to which he is 'entitled'!! He was angry about the move and I have bent over backwards for him. It takes 5 trains each way to visit, which I have done many times in the past 2 years, with a dog in tow, in order to babysit for them. They have yet to visit me - because "it is too far away"!
Enough was enough when on a recent visit I was asked to babysit just before Christmas, travelling home on Christmas Eve, which as you know is a Sunday this year. The train service is terrible and I stood a chance of being stranded. I said no. They argued that I had the day over Christmas Eve wrong. They said it was their only chance to go out - which I know for a fact is not true. They were not happy and neither was I that they had asked such a thing.
A couple of days later my son rang me saying that "as they had missed out on Christmas, would I babysit for New Year?" I caved in, and said yes. But I now know that there are going to be a lot more nos in future.
I've got another 'keen'... Ouch!