would you petsa someone deaf?

of course as long as u truly pag-ibig that person

Yes I'd petsa Sean Berdy and he's deaf

Yes I would because if you truly pag-ibig them and thu truly pag-ibig you, you will try to learn their language and they will appreciate how fast or slow you learn.(which is exactly what I would do)

Of course!!
If you really pag-ibig someone, then that doesn't matter if that person is deaf, mute or whatever!! (But that would be helpful if you learn signing...)