My grandma decided she doesn't want to babysit anymore...because it's to exhausted for her...when he…

My grandma decided she doesn't want to babysit anymore...because it's to exhausted for her...when he takes a nap from 12-3 and I work 1230-5...he's literally awake for 2 hours for her and it's exhausting to put him on his play mat and watch him play? Seriously?? But she will happily watch her other great grand children that are terrors and are horrible kids to watch...oh and I actually paid her? So I got fucked over this week! So now I have to take off work!