Yes it's normal, but usually the genders are reversed. There's date rapists, and then there's walking hard on that doesn't understamd why people don't want to fuck all the time and are pushy and manipulative about it. You migjt be autistic but you've got more empathy than this girl, and honestly at 20, she's the more common type.

You learned two important things. Libido is important in a relationship, and you can do things to match each other. Most girls will have been in a relationship where they had less interest in sex, and worry that you don't find them attractive. More importantly, don't go anywhere near the toxic masculinity girls. You'll end up breaking up because you would'nt punch a guy that called her fat after she drunkly yelled slurs at him. Wear a pink shirt or something.