It's not cheating.
But what did you expect to happen? You both show an interest in one another, but because she isn't readily available, and wants to make sure she has completely ended things with her ex (so she can date you), you move on to the next girl.
She's upset because you jumped to the next girl, even after her saying she was interested. You have every right of course, as she has the right to get upset and express herself, even if she says you did something you didn't do.
But what did you expect to happen? You both show an interest in one another, but because she isn't readily available, and wants to make sure she has completely ended things with her ex (so she can date you), you move on to the next girl.
She's upset because you jumped to the next girl, even after her saying she was interested. You have every right of course, as she has the right to get upset and express herself, even if she says you did something you didn't do.