You shouldn't worry so much about whether others find it odd for you to be attracted to someone. Who you like or dislike is based off of your own personal preference.
One thing that others may find odd is your statement.. "deaf boy"
Why ask the question that way? Why label him like that... Would you find it odd if I said "why do so many people find it odd for me to want to date a blond boy or a short boy or even a tall boy with two heads (granted the last one may be pretty odd
)
I think based off that statement you may not be ready to date the "deaf boy"... Get to know him...Find out what he likes and dislikes... you never know he might not be ready to date a "hearing girl."