To be quite honest, there's nothing you can do.

She was at least upfront with you about not wanting to get into a relationship. Now she contacts you wanting an explanation of why you like her supposedly after some guy dumps her.

My take is that her ego was bruised when she got dumped so she reached out to you for comfort. To make her feel better about herself. She hasn't made it clear that she liked you or led you on but she did do just "enough" to keep you interested. There's no other reason for her to contact you so late just because she was "curious".

What you need to understand is that she knows you like her. There's nothing else you have to do to convince her, so honestly you would be wasting your time chasing her or doing things to "convince" her. But really what you're trying to do is convince her to get into some type of relationship. That's not going to work.

Leave her be and go do your own thing. If she's interested, let her take initiative because she already knows where you stand.