This is what you have been waiting for!! Try to be as calm as possible and make sure to be kind but not pushy! It's gonna be just as awkward for him too!! If he starts to be mean, I don't think he will the first day, make sure to stick up for yourself and tell him you won't tolerate it (I have had a hard time with this one).
Good luck!!
Me31 H33 M11 T15 S10, D4 H deploys 01/11 H R&R two weeks 10/11 ILYBNILWY/sep 12/11 homecoming 1/12 pos D 1/13