<human>: We've been together for a year. It's been frustrating throughout, since the most recent 8 months have been long distance, where I've been at school and he's been working. 

Recently I've been really fed up with the effort of maintaining a long-distance relationship, because of assignments in my engineering program, and university life in general.  Sometimes I wonder if I could do better than him with less trouble by dating someone oncampus instead. 

It's affecting my relationship with my boyfriend because now I snap at him a lot for disturbing me online while I'm doing a problem set. When we meet in real life (usually once a month) I'm still snappish and pessimistic about the future of the relationship. He says that I'm taking him for granted, which is true - I keep thinking about how replaceable relationships are and overcriticize him for minor things like wearing his outdoor shoes into the house. 

Prior to the long-distance stint, our relationship was pretty good, in that we cared equally about it. Now he cares about the relationship a lot more and I look down at him for it. He's hoping that this fall, when we're both attending university, things will go more smoothly, which is why he's still hanging in there. I'd like for our relationship to last until then, but really don't feel like committing to the idea because a long-term future with him just seems like a pipe dream now, and I don't always feel like it's worth it anymore. Ergo I have stopped putting in more than the minimal effort into the relationship, which makes my boyfriend feel like crap. 

What do I do to stop devaluing our long-distance relationship and appreciate my boyfriend better?

Can you condense the text into three sentences or less?
<bot>: Long distance relationship is hard to keep up because of coursework and university life. Sometimes I don't feel it's worth it anymore, and become overly critical of my boyfriend in retaliation.