Thanks all - I just had to vent last night.
That made me calmer so I could approach H later with it - I told him that since the nanny rule had been violated, and I had 3 years to get through, that I really didn't want him surfing with her (yes, dfb, I've tried suirfing, but between my broken ribs and a nagging shoulder injury, i've been out of the water most of this year).

H was fine with that, reminded me that she hadn't been his first choice (he's one of 4 on the committee that picked her) and pointed out to me that not only did he find her a little too upper-class East coast for his tastes (true, I did sense that) but that he thinks she might be gay (no, I didn't sense that, but he could be right! )

Really - I was venting here not so much because I really felt she was a threat, but because I HATE having to even think about those things. I am NOT by nature a suspicious or jealous person. I never complained or was bothered by my H's gregarious nature - I liked that about him. I was always generous and (stupidly) confident in my H. Now I can't really be that way and I DON'T LIKE IT!!!!!!!

H was great about it though, totally understood my viewpoint, and I was very calm presenting it, because I'd gotten to vent here first. Thanks all!

Ellie