If he doesn't leave far from you, can he not come and collect kids and bring them back or you drop them back and pick them up?
If not possible, could you stay in your bedroom and read a good book?
If you tell him you know about FB, the motorbike, that wouldn't be detaching. Personally I'd say nothing.
For the finances as it's a joint account you must be able to have access to the bank statement and see what has been done with it. At the moment, I'll say don't rock the boat.
I know it's hard and it's daily new. Nearly a year for me but I'm glad I didn't push financially as I'm better off at the moment and he isn't challenging. Going dark is doing me a world of good, and I don't think about STBXH as much as 2 weeks ago!
