First of all, welcome!! I'm new myself, but you've definitely come to the right place.
Well, this certainly isn't the way one might expect to begin a relationship! I met my boyfriend while he was flight instructing (which he says that in a lot of ways he wish he were still doing!), so we at least had a few months to get to know each other before he left for a freight company and then eventually a regional.
There IS an "up" side to your situation - you'll have to learn how to communicate effectively!
It can definitely work, but to just be talking to each other twice a week doesn't seem like much to me. E-mail is a great way to stay in touch, and you can usually get a little bit deeper that way, too. There are plenty of people that meet online and really have online type relationships first! My boyfriend's brother met his wife online and they talked/dated for many months just by emails and chats. Two years later, they're married! Hopefully, once both of you get in a better position with school and careers, you can manage to see each other more frequently.
Yes, he's busy right now, but I doubt he's so busy that he can't at least give you a quick phone call or email once a day. Communication is key in these types of relationships... I'm guilty of not being a good communicator myself and because of that just had a huge blow-up in my relationship. Fortunately, it will end up bringing us closer in the end, but due to me not opening my mouth and asking for what I wanted and needed, it caused problems. So I guess what I'm saying is that if you need more contact from him, ask for it. There's nothing either of you can do about physically being together, but there is plenty that you can do to form an emotional bond.
I wish you luck!!
