Reading through the postings since I was last on, I think that it would be a good idea to set up a standing play date with my son and my parents. (!)

That way, they can get over the whole awkwardness/denial and ds can get over his whatever-it-is.

This, I think, will be the right thing to do; over just scheduling one session with dad. The reason I think this is that my parents have pretty close relationships with my first brother's kids. They live nearby and the girls both go there after school (and my youngest niece was babysat by mom for years), so they have gotten to know them...just not ds!

What is that saying?
Familiarity breeds contempt. (I'm struck by the root of "Familiarity")
Maybe.
We'll see.