Is a bad reason for divorce?

I'm been married 9 years but I'm so fed up with my husband. He doesn't satisfy me ually at all and doesn't care. We have about every 6 weeks and I never get an . Its been like this since the beginning. My husband refuses to have with me but masturbates at least 2 times a week and I can't describe how angry that makes me. I beg him to try new things with me but he refuses. I give him oral but he doesn't (and has never) returned the favor. Other than this, he's a great guy. He's sweet, funny, charming, but in bed nothing. I had to drag him to marriage counseling 5 years ago and it really didn't help. We went to a few different counselors but they said that they can't help us because my husband refuses to change or admit there's a problem. We stopped going to counseling last year. I've told him my feelings countless times but he says that " isn't everything" or "get over it." I've contemplated having an affair over the years, but I don't want to tear our family apart (we have a 3 year old son). When we fight, I ask him what he would do if I went out and found a man to please me and he says that he really doesn't care. I left him over this last year for 4 months and he didn't even bother trying to get me back. I finally came back because I felt guilty for our little boy but nothing changed at all. I've begged him to go to more counseling or just sit down and talk to me but he says that I just need to "deal with it" and leave him alone about this. I want a man that wants me and at this point I'm just really resentful towards him, but I'd feel guilty about divorcing just for this. Any advice would be appreciated.