Thanks everyone!
Unfortunately, I don't think this is going to be a case of "tough customer who comes around." It seems to be more emotional than about having reasons that could be argued against.
Yes, it is really difficult not having people to talk to. In my case, I don't even have a husband/partner to talk to! But at least the grandparents are on-board. I come from an academic family, so my parents totally get it and they are insanely proud of Hanni. When I need to, I can always go brag to the grandparents!
Another difficult point for me, though, is that I have a sister with a severely disabled child. I have to be careful even talking to her about Hanni's normal milestones, and discussing giftedness is out of the question.
