I'm going to go against the grain here, like a small number of others on the thread.
First of all, it really boils my piss when people say 'why does your husband want you to look like a 10 year old girl?' JUST because he likes the pubic area shaven (not necessarily bald but trimmed/neat.) So, many men prefer it like this, so what? I don't think it's unreasonable for a man to prefer it shaven neatly, instead of a massive bush of frizzy pubes. If the woman only has an average bush (or a sparse one,) then fair enough, but is anyone actually shocked that a man would prefer a neat bush over an overgrown one? Especially if that's how he has always known it on you!
I mean, if the OP has always had it trimmed/shaved (since he met her,) and she is suddenly letting it grow wild, I think it's quite understandable that he is pissy about it. As someone said earlier, many women would be pissy if their men grew beards and refused to shave.
I know a woman who has been with her DH for 23 years (married 20,) and he has had a beard for 2 years. She likes the look of it, but hates the feel, and point blank refuses to kiss him (pecks yes, but not proper passionate ones.) Nor will she let him 'go down' on her. Weird, but she says that's how it is as long as he keeps that beard. Not sure how things are going to go long term if he keeps it indefinitely!
I also can't fathom why the OP won't shave her bush, but shaves everywhere else. Could you not just trim/neaten it OP? Still, it does seem odd that your man is point blank refusing sex; I can understand him refusing to go down on you, but refusing sex at all is weird. He does sound a bit bratty. I mean, he is entitled to feel a bit miffed, but to refuse sex altogether? Weird.
Women can say they don't want their man to have a beard/don't wanna kiss him/don't want him to go down on them if he has got a beard etc, and other women will defend her and say what a selfish bastard he is to grow a beard when he knows she hates them. Yet when it's a man who dislikes a woman's big bush, people tell the woman to leave him! I am always amazed at how quickly people on here tell women to leave their partners/husbands at the drop of a hat, without even trying to resolve anything!
Re shaving your bush, I prefer mine shaved down to very little; it feels better, it feels cleaner, it feels sexier, and DH loves it. Whether the full bush is more normal or healthy or not, I know how I prefer mine. As I said, it doesn't have to be 'bald,' just maybe 50-60% shaven, and 'neatened.'