The of dying in combat has always married seeking fuck been low throughout history, but recent advances in combat medicine have made the odds even better. Far more likely is that he'll come back maimed in some way, or have PTSD. What is most likely is that he is "not there anymore" not because he was killed, but because a messed up his head. But that is treatable, once he overcomes the military's prejudice against those with mental problems.

To get more comfortable with talking to people in general, try striking a small conversation at the gas station, grocery store, bank or with a co-worker you don't know. don't be specific about gender, talk to everybody. Get more at ease with yourself by escaping your comfort zone. Gradually increase your level to flirting with the opposite sex, over the age of 50. Make someone smile with your charm and sophistication. When you feel more comfortable with that, ask someone in your age group to go for a cup of coffe/tea/Diet Coke. It take a few tries not to stumble over the words, but each time get a bit easier.