Guidance please

[TimApril]

I am in love with a BPD woman who I work with. We were close friends at one point but I made the mistake of expressing my feelings towards her. We have been very off and on since.

A few months ago she randomly started conversations with me about potential dates and showing me pictures of what they look like. I tried to be supportive of her but when it became too much I asked her to keep that private from me (she was well aware I have feelings for her) it was almost then and immediately after that she announced her relationship on fb. I became emotional and somewhat flipped out on her in text right after.  We stopped communicating all together outside of work and he next time we were in the same room together she was awkwardly quiet. She gave in and contacted me outside of work to tell me she still cared about me. I have pulled back emotionally but slowly we are starting to communicate again, mostly in regards to work related things but I often hear her talk about her new relationship at work when I'm in ears length. It's almost as if she's jabbing at me. I often find her mimicking my updates on fb. I'm not sure what boundaries to set and what she is trying to get from me? I love this woman and I don't want to lose her. Friendship or relationship. I know when she is being fake. Guidance please?

Why is she looking for a jealous reaction? I have to deal with this on a daily basis.