<human>: So long story short, my current boyfriend and I (I'm female) met online several years ago, and knew from the off we were attracted to each other. Since we were both so young at the time, we knew we couldn't actually be in a relationship, but we have always been in touch. Eventually, I got the chance to temporarily relocate and considerably reduce the distance between us (although it is still a long distance relationship), so we decided to give the whole 'proper relationship' thing a go. We've been 'official' for 9 months now.

I'm going to get to see him again in a few weeks, and I have been counting down for months. But about two weeks ago, I started working more closely with a colleague on a project and have developed feelings for him, and I'm 99% sure he feels the same. I haven't done anything, made sure he knows I'm in a committed relationship, and I will only be seeing him for a few more weeks. I don't want to end my relationship for a meaningless fling with someone I'm only infatuated with, but I'm finding the situation difficult to deal with.  Before my current boyfriend and I became 'official', we basically had a don't ask don't tell policy, so I've never had to exercise self-restraint before. 

I'd like some advice on how I can move through this infatuation as quickly and smoothly as possible. I know I'm probably too young to be thinking about settling down, but my feelings for the other guy are filling me with guilt and making me wonder if I'll ever be able to settle down or if I'm the cheating-type.

Provide a brief overview of the text.
<bot>: I'm attracted to another man, and I'm having a hard time restraining myself now my partner and I are 'official' and I need advice on what I should do.