Ladies, can I get your opinion?

So last night at this bar, I had this woman, older than me by 2 years, approach me tell me I was cute. Later she came back and pulled me on the dance floor telling me I was too cute, and I looked like Zac Efron etc etc. and that I was going to get her in trouble. After which, she told me she had a boyfriend, and practically my leg on the dance floor. So, the question is, why would a woman do all that if she had a bf? Is she unhappy?