I know it's not quite the same thing but my son was sent to Afghanistan earlier this year.............
Before I address the final questions of your post, may an old hand give you the following points to consider ..........?
He has a job to do, for which he has been trained. He will be with a group of blokes he knows and trusts...............and he will be firmly convinced that nothing is going to happen to him. The thing most likely to play on his mind is you.
Your boyfriend will be fretting about how you are getting along: worrying that you may be moving your life on, without him. He will hate the thought that you are crying and that he cannot comfort you.
Your responsibilty, if you like, is to sound as happy as you can; to let him know how desperately you miss him, but be respectful of his job and his responsibilities. Men aren't too good at dealing with emotional conflicts, and he may get resentful if he thinks that every time the two of you talk, you moan about his job......
Concentrate on being upbeat and having 'daft' conversations; start to look at your day in a different way and store up snippets of silliness to make the two of you laugh.............it will also help you feel positive, strangely enough.
You may find that night-time is the worst. Find ways to make yourself as relaxed as possible at bed-time.........sleep deprivation will only make you feel worse. And the wee, dark small hours are the worst time to lie there thinking "What if...........?"
I finally unclenched my jaw the night I knew my boy had arrived home safe and sound. :o)
And, finally, absolutely refuse to entertain thoughts that anything bad will happen ! If you feel one of those thoughts creeping in, burst into song or start some furious hoovering............keep them at bay. They are no use to you or your fella. The eternity that is three months will soon pass ..................



