I think you're being really resposible about this. Like anacinforheadaches said, you've given yourself the best advice.
Also, I was in this kind of situation a 13 months ago, except I was the one with the boyfriend who met a guy that was just wonderful. And the more I got to know him, the more I realized how unhappy I was in my current 7 year relationship (we'd been together since I was 15). Although, we were having other problems, and I hadn't been happy for a while, so it wasn't all because of my new interest.
We didn't spend too much time together, but emailed and talked occasionally at work; but even if we had spent more time together, I still wouldn't have done something in the heat of the moment that I'd later regret. I wanted to start on a clean slate.
Now it's coming up to mine and my boyfriend's one year relationship, and I couldn't be happier. I believe I've found "the one" and I'm so glad I met him, and had the courage to do something about it.
If it's meant to be, then it will. We overcame a few hurdles to get to where we are, but it was worth it.
So if you feel that strongly about this guy, and you think he might too then he will probably come to it on his own.
Good luck! Keep us updated!
I'm on twitter *. And I'm a newbie blogger at ateaspoonoftru.blogspot.com.