Search Results: keeping me waiting

So there is a girl I like. We went out on a date, hit it off well, she asked me on a second date and then hugged me before we left. I called later that night to tell her I had a good time and she answered. Tried texting her the next day just to get the conversation moving, and she never responded. Two days later I saw her at her work (I recently switched dentist and she is one of the hygienist that works there). She acted okay, just a little off compared to the date night. I presented her with a little silly gift (a tiny minion plush since she mentioned she was obsessed with them on our date), and she acted much nicer. The next day I saw her again as I got my teeth whitened by her. I asked if I had done something wrong and she said I hadn't done anything wrong, I was just a little pushy. I apologized for coming off a little too eager too quickly and if she would be interested in grabbing coffee/lunch sometime. She said she would but she was already seeing someone else. I then overheard her talking in the back to one of her coworkers and apparently this guy was her new boyfriend. So why would she tell me she is just seeing someone else, then tell someone out of earshot that it is her boyfriend? After I apologized, she was far nicer to me and we actually joked and cut up just like our date night. I did leave a tiny flower for her to find, which she did but didn't mention it to me, before I left. So I guess my question is pretty obvious by the title. I am backing off to let the proverbial dust settle for at least a week, before seeing if maybe she would be interested in at least keeping the lines of communication open. So what do you guys and gals think? I am also not going to be sitting around and just waiting for her, as I do have several other dates set up. So let's fire this bad boy up and get some opinions going. And GO!

Just an added note. The next I will see her for sure will be 6 months for my next cleaning (maybe some hope then?)