Sorry if I'm going over old territory, but 1) if something does happen, you will get news because you are his wife; 2) maybe some WOA saying it's good to go out with friends and relax (maybe even go so far as to encourage it - it would be a big 180 and would make it "safe" for him to talk to you).
Just set a goal of one/two weeks of not calling/texting if he is late - OR if you do TM him with "have fun!" It's worth a try.
Michelle - Proud DR Rockette S: 28JUL07, D'd: 29OCT09 http://tinyurl.com/27j9qo2