((Penny))
I don't think you're over-reacting at all. They're your husband's friends, and he's not even there.
Like Latte said, you don't have to give a reason, just tell them "no more fishing". If you feel like you HAVE to give an excuse, I would simply say "things have changed" and leave it at that.
As far as your husband, I hope he becomes more supportive. It's helped my recovery, to have the support of family, but I've also learned that some people just aren't that way, and if it comes down to it, I always have a backup plan.
Hugs and prayers!
Amy