Definitely read on asexuality, it broadens the understanding of sexuality in a way that benefits everyone. Also, I think you should separate what you feel from what you do and biological needs. You may feel certain kinds of attraction, you might have an urge for sexual release, maybe you prefer sex to solo masturbation, you can just choose one activity without feeling the need to do that specific activity.
Think about cake. Do you like all kinds of cake? Do you ever crave cake? Do you sometimes just crave something sweet and cake is a good option? Maybe you don't think about cake, but you know that you will like it of it's offered from time to time or as part of an experience with someone else. Finally, do any of that get labels? Probably not, but understanding yourself will make you happier. Personally, I go for definitions instead of labels, and that you have already provided. Just expand it - everyday.
When I was in Barcelona, I did exactly that to eat without spending too much. Two or three blocks away from touristic attractions and I could have nice meals in small establishments with nice people.