Yeah I think there are definite boundry issues, and this is my bigger concern. I would more than likely talk to the counsellor JIC there is a bigger problem, you can never be too careful especially when there is going to be a new family member soon iykwim? Not to sound bad :-s I think if the ignoring is not working then you probably need to take another approach. And just because his SD said he can do it whenever he likes doesn't mean he can when he's at YOUR house, he needs to respect your space plain and simple.

Goodluck!

*hugs*
Cailin