I would definately figure out WHERE the sleepover would be, and make sure its known OW will be nowhere around. After that is talked about, I would let him do it. Its wonderful he is reconnecting with the kids!!!! He probably misses watching them sleep and waking up with them, I know my H does.

Great job on the play, making new friends, GAL. Your H very obviously noticed this. Good thing! Bittersweet ending, huh?