Sorry - I forgot - is he neutered yet?

All kittens want to play, and as they grow, they don't know their own strength for a while.

Short of him having his own space with toys and stuff away from Ashley, I can't think of much else.

Crating or closing him in his own room is an option...but one kind of hates to do that when he is so young and cute.

Maybe separate him from her for just a couple of hours a day - so you can get some peace.

Good luck!