<human>: Could you distill the essence of the text into 1-3 sentences?

So I've been apart from my girlfriend for a little over two weeks now, and we've been together for a little over a year. I moved to a new state for a job, and she stayed to finish her last semester. She plans on moving here in the winter and finding a job, but doesn't want to move in with me until next year. 

Basically, we've been talking every night, even skyping and sending dirty pictures, all that good stuff. The only problem is I don't get any kind of relief after these things. After talking I don't feel happy to have known how her day was, I feel really sad. I don't know if it's because I wasn't there to experience any of that, or the fact that these 4 months will mostly be just blank spaces in regards to each others lives, but nothing helps. 

I've never tried to have a long distance relationship, but all of my long distance friendships no longer exist. I've never been good at keeping touch with people not in the area. We have a really long time to go and if every time we talk I just get more depressed I don't know how I can keep it up.

 To make matters worse, she always seems so happy after we've talked, the complete opposite of me. Because of this I don't want to talk with her about it and bum her out, as I've already done a few times over the phone, just not being able to keep the conversation going and getting bored/sad. 

She plans on visiting in a few weeks, but I just need to know, does the beginning just really sucks, do long distance relationships really really suck in general, or can some people just not stay in touch and feel like they're in a relationship if the person isn't there?
<bot>: Just started a LD relationship, and it's really hard. Past LD friendships didn't go well. Do LD relationships just really suck or can some people just not do them?