I took my son to Dragons Den but he was so exhausted that he just cuddled me we went back to my mums. He seemed to be full of cold too. When I returned him my ex pushed me to give him a bath if I could. I don't know what is reasonable in this unusual situation. I am going up tomorrow as it's one of the kids birthdays and I owe it to them to honour it. Now that will be weird. 
I stayed in and watched 'Grown Ups' and 'Predators' whilst mum went out for a meal. Being in this halfway house feels exactly as that, not at the house with my wife anymore but not in a new place of my own. Its step in the right direction though and too be honest I slept really well. 
I feel guilty today now my son is I'll and I have walked away to somewhere else. But I picked him up from nursery, had him four hours, returned him and gave him a bath and I am back at around 9:30 am tomorrow.