A lot of guesses but knowing you it's none of the ones that have been mentioned.
What I want to talk about instead I'm glad Robbie in going back to Daniel's room the only downside is Daniel may now have a GF and Robbie may hook up with Connor so they have to work out a schedule for some alone time.The main reason I'm glad he's back is Daniel said he missed him being there the adoption was a good thing because of the sibs.This is my pervey mind talking here but also Daniel is also good eye candy for Robbie I know it's his brother but you're only human.
I think this is a less then 50/50 chance but it is in the back of my mind Daniel seems to be at Doug's house quite a bit Hmm.