(2) what is with H and younger women that they just seem to latch onto him in that fashion and constantly hit on him?
Heywyre, some guys are just magnets for younger women. My late fiancee was one of those men. He was 50 when he passed and young women (in their 20's) would hit on him all the time....it didn't hurt that he was really good looking and fit too, but you could also tell he made a good living...he would often get hit on my flight attendants when traveling). His partner and his assistant both told me that when that would happen somehow he would work me into their conversation, and/or show my picture while talking to them about me. I have to admit that made me feel great! He was polite to these women but made it clear he was taken and wasn't interested.
With my H (aside from his online stuff) I know he talks about me all the time. I actually had no idea that he talks about me so much until other people would tell me, which was part of my frustration in the beginning...other people were very aware of how he felt about me, but I didn't have a clue because he'd never tell ME. Anyway, I suspect if he had been in your H's position with that woman he would have said "sure my wife and I can probably stop by sometime when we're out and about."