Ah man, ok.
Firstly, thanks for the responses.
Secondly, I may have been suffering from "I'm Sometimes Overly Dramatic on the Internet" when I wrote this. ^.^;;
Essentially, about an hour after pressing send my girlfriend came home and hugged me and things were more or less alright really. I think... sometimes... possibly... I do this thing where huge unbearable amounts of existentialism build up and then affect me horribly for the space of about thirty minutes, and then I remember everything is probably mostly ok and it dies down. Some of my worst problems are the ones that I made up; it can be a pretty intense thirty minute phenomenon.