ASEXUAL BF? At my breaking point.

🌸Brandee • She's my angel dressed in armor. ❤️
So I've been with my boyfriend for almost two years now and we've been very serious for a while. We've talked about our future and getting married, but we're both in the military so we want to wait. 
Anyways, we've had issues for the longest time now about not having enough sex. He always turned me down and it would make me feel terrible and insecure and blah blah... Needless to say we fought a lot and our lack of intimacy caused problems for me and in turned caused problems for US. I would feel terrible for breaking up over sex, but I'm at my breaking point here, because I don't know if it's something I can live without married for the rest of my life. 
In one of our recent convos, he nonchalantly mentioned being asexual and I kind of blew it off as nothing until I couldn't stop thinking about it. I asked him about it last night and found out after all this time that he does indeed identify himself as being asexual and I don't know what to do now. Obviously it doesn't change how I feel about him. I only wish he would have told me before. Because I've always sort of beat myself up over the fact that he didn't want to have sex with me. This gives me a whole different perspective on things so I'll have a different way of thinking when I try to deal with our lack of intimacy. He asked if this is something I'm okay with and I don't know honestly if I can handle it in the long run. Sex is important to me in a relationship... And now knowing that he's asexual, I know that nothing will change. 
Anyone that's been in this situation or knows anything about it.... PLEASE. I need some advice. Sorry this was so long and thank you for reading. 🙏🏼