I have to agree with Greenfreak on this one, you really should consider being just you for awhile, not half of a couple. I lived alone for the first time after my first wife and I seperated, and I am really glad I did. I really learned alot about myself.
Even though it will be 3 years from now, don't make any kind of commitment, keep talking, he may be the right one for you, but then again, you may learn a year from now that he's not, or a year from now, you may meet the man of your dreams in person. Basically, give yourself time to decide exactly what it is you want, don't assume because you are having these feelings that this is it. The feelings you described in your first post are feelings I associate with Lust, not love.
And you say you can't move away from your Mom? That is very honorable, I'm sure your Mom would miss you greatly, but I really think you have to consider your own needs first.