Does this girl like me?

More romance-based history for the good people of Yahoo! There's this girl I like. She's a co-worker (supervisor). She's two years younger than I am, and just finishing high school. We hang out every now and again. On Christmas, I bought her a coat, and she kissed me on the cheek. She had a bf then, but the kiss felt strangely close to the lips. It was really cool. As time went on, she and her bf broke up, and she hooked up with another co-worker. She's bi, and this coworker is . We hung out once, and I took her to dinner and a movie, but her girlfriend was mad about it. On top of everything else, when I went into her room, she suggested I give her some art (I'm a photographer) for her relatively empty wall. Her girlfriend got upset about that too. Come V-Day, I gave her a Gift Card and a dozen roses AS FRIENDS though. She was in a relationship and I just wanted to go above and beyond with a gift. On V Day, she and her girlfriend broke up; but they got back together the next day. I pick her up for cl almost every morning, and take her home from school every so often too. Well, we hung out again the other day. I took her shopping to use her gift card, then we went to the mall. As we were both eating in the food court, she said that she thinks of her current girlfriend better as just friends. The cynical side of me doesn't expect it to last. After foodage, we went to Hot Topic, where I made her decide between pants and a corsage. She decided pants, so I bought her a pair of pants. It was really fun. However, as I got to my other job (I work 2 jobs), she sent me a text saying not to speak of anything we've done, as if it's forbidden. I'm just curious if this means there's a chance. The way I see it, if there wasn't some spark between us, then we wouldn't have to keep it secret. But I'm oblivious to the point of stupid, so I ask the good people to Yahoo! for advice.