Myshina, I guess the guy does sound a bit too desperate. However, unlike what Xanatos is saying, I don't think there's anything wrong with proposing soon, IF the situation and feelings are right. I also proposed to my wife rather soon, I think we just knew each other for half a year. But we'd discussed the topic of marriage before, we're rather madly in love and we were not in college anymore. Also the situation was a bit different since we were living very far away from each other and missing each other a lot.
As for the guy, I think the guys here are being rather cruel to him, but I have the feeling that some of them may be just as clumsy once they get a girlfriend themselves... ;P
His drunk antics does show that he have a serious bad side to his character, but I guess it also shows he really cares a lot about you. Maybe I'm a bit too much of the forgiving kind of person, but I'd have a serious talk with him and perhaps give him the chance to clean up his act, with the precision that marriage is unlikely until you're both finished studying, at least, if the feeling still is OK. But I guess you may feel too bad about the whole situation, in which case it's better to send him walking with his condom in his jacket... You're the best one to judge his character and worth.
Walrusfella, you're not sure of a job until the contract is signed, and then there's even a testing period, so you're not even sure then. It's hard but that's how it is. They have the right to change their mind as much as you also do. I had to send out over 300 resumes to get only a few concrete job offers, and although I have signed on for one job, I still have to take care, because if they don't like me in September when I start there, I may be out of there in a week. So don't let one setback get you down. Keep on looking, and send out a boatload of resumes, even to companies that don't have any current job offers but that seem like you could work there. It's fine to use e-mail nowadays for most companies so spam away.
Also, it's a lot of work to find work, and I know it can feel disappointing to get rejected many times. Don't take it personally. If you get rejected after a job interview, try to figure out why if possible so you can improve your job interview or resume. Also check if you are getting enough response. The goal is to get called or get a positive e-mail reply around once for every 10 resume's sent (10%). If not, your resume needs to be improved, or the companies you send it to need to be better selected. Also, normally at job interview, always the same, or similar questions are being asked. Look for a list of common job interview questions and be sure to have a truthful yet positive answer to all of them. Finally, the response you'll get will be less during summer and winter holidays (the bosses take holidays too). All in all, keep up the good work. It my take a whole year, but I'm sure you'll find a better job eventually.
Edit: Also, if you hear often in a job interview that they complain you lack certain skills, then you may need to get some education first before continuing your search to fill that gap. Sometimes just going at it doesn't work, and then you need an alternate strategy.