This is where being a nice guy will actually pay off, John. It really does sound like she just wants to play pool and have fun, so go out with the mindset that you'll be coming home alone and just have a good time with her and enjoy her company. If you like her and you'd like to do it again, send her a message later the next day telling her you had a good time and ask her if she'd like to do it again soon, but this time let her choose. What you'll accomplish by doing this is letting her know you're interested, you're a decent guy, and that you're interested in getting to know her better by letting her choose the next date or whatever. If she's one of those, "oh I don't care, whatever you want to do", DO NOT repeat what she just said. Have a backup plan like the movies or a concert or even just hanging out at your house. You'll be taking charge of the situation, showing her you're a decisive person but also a nice guy.
Nice guys finish last with bitches, cunts, manipulators, abused women, and attention whores. If she's none of those, she'll appreciate both your honesty and your courtesy and you probably wouldn't want to hang out with her if she were one of the aforementioned girls anyway.