Girl who liked me suddenly gone cold and distant?

I'll try to keep it relatively short:

Started seeing a girl that had a crush on me from 2 years ago from high school. We recently met up this summer and went on 2 dates that went quite well, kissed, held hands, and the whole bit. When I tried planning following dates she started to flake and grow distant. I asked what was up and she explained that she wasn't over her ex and the breakup and she didn't want me to be the 'rebound' guy because I was 'worth more than that'. The ex situation was 100% true time as confirmed through friends of friends. I basically told her that I'd give her space for a bit to let her figure things out and what not to avoid complicating things. 1 month later I try casually light texting her again (not even asking to hangout) and she was incredibly dry and trying to push back. I'm just really confused as to why she's doing this, has she completely lost interest and is trying to avoid me? I'm afraid of confronting her and scaring her away and I don't want to seem clingy, but if she's not interested then I just want decent closure. What should I do? Thanks in advance!

Additional details:

- Following the 2 dates she was initially fine with planning dinner, but she eventually flaked and said she wouldn't feel right leading me on when she wasn't over her ex.
-During the 1 month that I gave her space I was 90% sure that she was trying to get my attention through Facebook and steam (she games). Its hard to explain but she was basically mimicking all my online behavior and potentially stalking me?
- When I first started texting her again recently, she pulled the 24-hour text delay and 'I didn't see this text' game..
Girl who liked me suddenly gone cold and distant?
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