See, I keep forgetting about those part of FiaD being in Daniel's head. Because in that scene where Daniel is packing up his office, he calls Sam 'Carter' and he would never call her by her last name.
I'm watching the movie and even then Jack was a bit more tactile with Daniel than he probably should have, he leaned in very close when he was fingering the eye of Ra pendant. Then, of course, Ra kind of chucked Daniel under the chin right before he ripped the pendant off his neck. So maybe it wasn't just Jack who couldn't keep his hands to himself?