I agree with almost everyone here, bi curious, but not bi. I think its wise to use caution and step back and just be her friend. There is lots of time to see if anything more develops, but I would just let her know it has to be initiated by her and because she loves you, not because she is curious or pleasing her boyfriend.
I don't get where this is harassment immaterial. She said she loves her several times. I don't see any using going on here by the op, just from the other woman.
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