I met my first "proper" boyfriend during Freshers' Week, and it lasted two months :P Still, it ended really amicably, he's one of my best mates, one of this year's housemates (along with my current boyfriend... heh) and going out with a good friend of mine from back home. My current boyfriend was a friend beforehand, and we started going out in February.
You mentioned studies, well, he and I both have the same perspective on studying - we get slightly obsessive when it comes to deadlines, and we're pretty hard workers, so we bitch to each other/motivate each other/know when to leave each other alone to get things done. But when I'm really panicking about something, he's around to get my feet back on the ground, so to speak. So really it hasn't posed a problem at all. In fact, I'm far happier with him, in general of course, but also re: studies.
Cheating - no, I'd never cheat on him.
Am I happy to be in a relationship, hell yes. I spent far too long being single before uni. There've been downs as well as ups this past year, and I'm really grateful to all my friends for being there, but he'll make me hot chocolate in the middle of the night and worry about me and stand up for me, and.. yeah. I'm going to stop being mushy.