Same question I had.
I see a LOT more hearing guys dating Deaf women than Deaf men dating hearing women. Sometimes (by no means always), I get the feeling that hearing guys like to date Deaf girls cause they think it's "easy"---their mentality is that communication is basic and minimal, and they can easily control the woman when they go out into the hearing world because they control the means of communication.
There's a simple scientific explanation for this: Guys like to feel depended on and powerful--it's just who we are--and they think that by having a Deaf girlfriend they can easily fulfill that need. Using a person's deafness to satisfy this need will have very bad implications on the relationship. It's also just plain despicable.
I'm not saying this is how ALL deaf/hearing relationships are, but there are plenty, and I'm sure many here have experienced it. I'm also not saying this is the OP's motivation for wanting to date a Deaf woman, but you need to be fully aware of your own motivation for wanting to date a Deaf person before you go out and specifically seek to date a Deaf woman.