tl;dr: Went to hookah bar, successful kiss-close, LMR on continuing, said I had to be willing to talk to her again to do more. What should I have done?

Backstory: We met at a party and I didn't think anything of it. Ran into her later on OKC and flirted a bit and then arranged to meet her at a hookah bar in town.

The Prelude: When I arranged for this on OKC, I said: "8:00, Shisha hookah bar... and I'm going to be handsy. Just letting you know." So as soon as I saw her it was a hug, kiss on the cheek, squeeze of the ass, and off to the hookah bar. The one I arranged for was closed. (She said "Why would you take me to somewhere I've never been before?" I replied, "Because I like to try new things. Let's go to the other hookah bar at Xhale".) We go to another hookah bar, smoke hookah, chat, etc. I maintain physical proximity and touch throughout, except when I move to the other side of the couch when she says she has made mistakes with men before. Just teasing and such.

We talk about travel, studies, sex, etc. At this point I tell her to scoot on closer to me, and she says I should scoot closer to her. So I bet her that whoever has the worst sexual experience should not have to do the moving. She wins, so I scoot in close and put my arm around her. Delay a few minutes, and then I ask her just how well she thinks she kisses.

The complications: At this point, she laughs, says she doesn't know if she wants to kiss me, and excuses herself to go to the bathroom. I'm feeling chill because it's just great to make your intentions clear. She comes back, takes a pull of the hookah, and while she is pulling I say, "Make up your mind about whether or not you want to kiss me, because when you get done with this pull I am going to kiss you." She finishes the pull, I go in for the kiss, and it is a success. She kisses rather well.

And then it gets odd. I suggest we go back to a place I know on campus to keep making out, and she says that she won't -- she needs to go home and see if I will talk to her again first. I tell her that of course I'll talk to her again. Life is short, do what makes us happy now, etc. I tell her, "I'm going to go close the bill and then walk to *** Hall. I hope you'll have made up your mind by then."

As I pay the bill, she comes up to me and says she is going to go home, but would like to keep seeing me, so she hopes I call her again. I leave, take a stroll to my car, and she follows. I take her hand, make out with her some more, and run a different variation of "What do you really want?" She says she has been played by guys before and wants to see that I'll call her again before she does anything further. I get in my car and leave.

Problem Summary: Seddit, what could I have done differently? I was pleased with being physically forward and getting the kiss -- I just assumed that so long as she wasn't leaving, she was still interested. But how could I have gotten around that hellish LMR towards continuing to do anything further? I lost some alpha there in negotiating with her, but what is the fine line between reassuring her that you're not a one-night stand and taking a walk when she doesn't believe it?