Me and my boyfriend have been together for 7 months now. It's a very complicated story but we truly love each other. My boyfriend works in Iraq so I only get to see him every 4 months. My problem is that my boyfriend has really been depressed for 1 month now so he doesn't call me anymore. In the beginning I thought the reason for him to stop calling me was because he lost interest in me and no longer loved but then he told me that he still truly loved me but he is really depressed and suffering which is why he doesn't call. He says that when he gets depressed he withdraws. I tried to get him to talk to me and give me more attention but that made him upset because he just can't be there for me right now because he has a very stressful job and is very depressed. It's not the first time for him to get depressed like this. Around the same time last year (before we were together) he got severely depressed and tried to kill himself by overdosing on oxycodone but his friend found him and took him to the hospital and saved him. He says that this time of a year which is the time of all the holidays makes him very depressed because he's far away and can't celebrate with his loved ones.
The last time I talked to him was 2 weeks ago and he got upset at me for calling him because he wants to be left alone while he's depressed. He asked me not to call him again and to just wait for him to call me when he feels better. He just sends an email every couple of days asking me how I'm doing and telling me that he misses me. It really hurts me to know that he is suffering and it also hurts that he's not there for me when I need to talk to him. I've been going through a stressful time myself and the fact that he doesn't call me just makes things worse. I thought about breaking up with him because he's not calling me and no longer giving me attention but I couldn't do it because I love him from all my heart and he's a good and nice man.
What should I do to help with his depression? and how can I help myself with the loneliness and emptiness I'm feeling because he no longer calls me? Is it normal for a man to withdraw from his girlfriend and not want to spend time with her or talk to her when he's very depressed?