Personally, and especially given that this child's family doesn't seem receptive to building the friendship, I wouldn't hesitate switching over to homeschool based on this alone. My son went to 2 years of PS and still has great contact with some PS friends. And has completely forgotten others. And has made other more meaningful friendships through other means (homeschool groups, atheletics, piano, etc).
I thought Kriston's post was great. I'd start working on outlets for homeschool. We tend to have the problem of too much social instead of not enough.
