Why is she seeking my attention?

So, a girl had been single for a while. I knew she had been single for the last few months, so I approached her, knowing she was available. Even before I pursued my intentions, we were getting close. We exchanged numbers and hit it off—texting, video calling, etc., daily. We would hold eye contact and hands like a couple in a honeymoon phase—until a situation arose. I was unable to help as she needed transportation to her workplace. She then told me she wanted to speak to her boyfriend. I thought she was joking, but it turned out to be a guy she had been with a couple of months before she became single. He was giving her rides to work and home. We had an on-again, off-again relationship after I confronted her about inconsistencies in her story. We resolved it and started chatting again until I saw her with the guy, and someone told me she was dating him again. Out of self-respect, I distanced myself; however, now she is giving me those looks as if wondering why we are not talking anymore. She even asked me where my gaming partner was, alluding to herself. Why is she behaving like this?

Why is she seeking my attention?
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