There isn’t much here to work with. Mixed signals are warnings. Don’t invest too much time, energy, or resources. Let her know she can get back in touch with you if she is interested. Until or unless she does, it is a waste your time to pursue someone so confused.
As long as someone remains ambivalent, you are in the position of trying to convince them. This isn’t satisfying because even if you succeed, you will be haunted by the fact you had to convince them and will be worried they can always lapse back into their ambivalence.
Wishing you patience and peace,
Proof Positive Blog @ PsychCentral