Krissy, i know what you mean and its so terrible. I go crazy if I havn't talked to my beau in 24 hours. I get moody and depressed and agitated if we missed each other or he isn't in late night when I call. thankfully, mine has a home phone, but I wish he had a mobile just to check in and hear his voice for 45 seconds, even if he can't talk at that time.
The other night we were emailing and he said he looked forward to talking with me that night, but I called when i got home from work, and again when it was very late, but he wasn't in. Even though he was, as i figured, out having a drink with friends I felt really sad that we couldn't talk, even if it was for long enough to know that he was out with friends. sometimes i get so unnecesarily worried and just want to know that yes, he is alright and just really busy.
I hate it hate it hate it so much, but in time we will be in the same time zones as the ones we love and wont have to worry about the cost of a several hour long phone call across the ocean, or not being able to reach each other because of those silly time zones.
thankfully, my beau phoned me this morning at 7am my time and though i had called in sick and hoped to spend the morning sleeping in, it was great to get that phone call.