Im a deaf man, but placed in the hearing world. In short, with hearing aids, i was able to speak and hear fluently that no one can determine i was deaf at all.. (unless the obviousness that is)..
All my life i hang out with the Non-deaf community, i never hang out with the deaf community. Oh i did once, but i find that i was shut out, simply because they cant work out whether im a deaf person, or a hearing one.. (kinda discriminant doesn't it? oh well.. <censor> 'em...)
If you are TRULY interested in him.. the person that is.. that great mind of his that is.. what is there to worry? It would be some degree of difficulties sure, but if both of you can work it out.. then brilliant, for the relationship would last almost forever...
So ... dont just sit there and ponder about what OTHER people think, or what he thinks.. just go out there.. and grab him. like a saying here in Australia "If ya never never go, you'd never never know"
PS: I love DeafBajaGal's response.. and I agree with her.. JUst treat him as you would with any other person