At first, I even thought if you are the guy I crushed at my work lol. I mean I can totally relate it, as I’m almost being the same as the woman in your story.
She might be taking much control on herself, thinking you are not interested in her!
But she wants to be friendly, get to know you and get closer, but only in a condition if you wants it too. Why don’t you give her the chance to get to know about each other like talking about random stuffs besides job. And going around events where both you and she is interested in (if you like her too).
Thus if you even don’t romantically like her, she would know what she should do later on like to try on you or leave you.
Be a man, make your first move if you like her.