as a girl, I recently dated this kid who went to a boarding school in CT, I live in MA, so as hard as that was, he only talked to me a few times a week, whenever he felt like it, so make sure you talk to her whenever you can, tell her how your day went, ask how hers went, make her feel like you really really care and ask for details too. not creepily, but details like oh and why'd you do that? or where is that? you know? if you can call her do that too. don't make all your time revolve around her, but also make sure you know she trusts you. ask her if she trusts you, if she doesn't ask why and reassure her she is your only, that you don't look at any other girl the way you do at her. I hope I helped. haha I saw long distance and I was like, poor kid been there done that. D; good luck :)