big sign on his forehead about moving in together that says, "I have NRE"... just so ya know.
Give it time. All the questions you have will all be revealed. Your job is to look after you, smile, love him, pat his head and say, "ahhhh... dear." and make him his favorite food until she comes back... in the meantime, make sure that he plans some dates for the two of you, and uses some of that good ol' fashion NRE lovin on you! Why waste it!