I have been dating this girl for almost 9 months now, I'm 17 and she's 16. We very rarely kiss because there aren't many good opportunities with out parents around. I have told her I want to kiss her more, but I don't, because there aren't many good opportunists, and she was fine with that. A few months after that I asked her over email about her opinion on having sex (I know it might have been bad asking that over email, but I didn't want to put her on the spot. I also said that if she wanted to talk about it face to face that would be fine). After a couple of days she replied saying that she isn't interested in sex that much because she is asexual, but she said "being asexual just means that I don't really feel any sexual attraction. However, I do feel romantic attraction, so I enjoy being with you and spending time together with you as a couple". I asked her if she has had sex or masturbated before, and is she hasn't how doesn't she know for sure she is asexual if she doesn't even know what its like. She said that she is still virgin (I am also), but she has masturbated once, but she didn't find it enjoyable.
I really do love this girl and I don't mind the fact that she doesn't have any sexual interest now, because we are both pretty young , but in the future I can see this becoming a huge problem, especially if I marry her (I know the chances of marring someone your dating in high school is slim, but you never know). Other than that she is the perfect girl for me. I don't want to break up with her, but at the same time I think I should. What do you think I should do, should I break up with her? Should I stay with her? Is there anything I can do about this? Any help would be greatly appreciated.
--edit--
She said she is ok with kissing and hugging, just not with sex.