Definately don't make a big to-do. Let him see what his missing out on (the things you usually do). You don't owe him anything right now! He has made this choice, so let him see what it feels like.
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