Maybe cut it short with a hair trimmer. You shouldn't have to feel like you should do anything, but if you do, watch the razor burns. Not fun!
Why would you want to do that? I mean, unless he requested it, leave it alone...or, what I do, is I get a bikini wax, then I'm good to go, no matter what.
No, if your boyfriend loves you he should accept you for the way you are.
What ever feels comfortable, try it both ways then see wich one you and your boyfriend prefer.
I think you should. It's much cleaner and more attractive. If you're hoping for oral sex with him, then it's a must. However, you might like to consider waxing as it gives a better finish and you don't get that itchy bumpy effect when it grows back.