No, you aren't crazy. He does have a son, ****ie. Part of his boy/girl twins (Lizzie is the other.)
And though it would have been kind of cheezy (but so was a lot of this episode)...shouldn't they have named him "Oliver"?
I also don't think they will (or should) put Elliot and Olivia together romantically. I think their relationship is actually pretty deep already...adding sex would muddy things up.
And the show would be over.
But I love the little "moments" between them (there have been far and few between in the last two years.)
If you have nothing else to do...do a search on YouTube for a fanvid called "The Touch" (SVU.)
Really cute.
Man, I need to get a life!