He didn't call me on my birthday!

Hi! Hope you can help! It was my birthday yesterday, I turned 25. My boyfriend is out of the country and has been ringing me every day, but yesterday all I got from him was a "HAPPY BIRTHDAY" text message. We've been together 5 years and I think it's unacceptable that he didn't ring me on my birthday. I just lost my dad a month ago and I went trough lots of stuff, I've been on my own since as he had to go abroad, so it's been hard, and now I feel he purposely misses out on the times when I need him most.

Otherwise we are ok together, but just to mention he did this last year on New Year's as well. He went to see his family to another city and never came back...only next day, because apparently he heard some stuff I said about him from other people. I know this isn't a good reason, but GUYS, I still need your opinion. I bet he will ring me tonight, should I ask him why he didn't ring me last night for my birthday? I was at home waiting for the phone call, all by myself. No party, nothing. Please help! I love him, but I don't think I can handle this anymore. Does he love me? He never says.

Thanks....K.M.