Thanks guys - I left W a note this morning and asked her to be really nice to S since he had a rough evening - no more than that - and told her I'd call him at bedtime tonight, since I'll be out of town on business until tomorrow evening.
I hope she doesn't call about the note - I don't want to talk to her and hear her say "he's young, he'll get over it" or some of her other crap. Not today.