Why would my crush do all of this?

Anonymous
My crush is 22 and I’m 20. She has a fun side. She’s told other coworkers that she “loves”them. She’s told another coworker “congrats pretty girl” and that bothered me but I think they have more of a sisterly thing. The other girl had a boyfriend. Once a group of girls called me pretty in front of my crush and she teased me and was like “that was nice”.
I was dating a guy and I used to text him at work I’ve said before that him and I argued a lot. Once I came into work irritable and she asked me what was wrong and why I wasn’t talking to her and I could tell her. She asked me twice. I always talk to this one coworker and once I caught her glaring at us and another time she asked if something was what her and I had been talking about.

She started telling the other managers about me calling my boyfriend even after closing hours and clocking out. she still told me to hangup and told on me.

I was mad at her and she was showing another coworker who I had been talking to a pic of a life size doll and she said it was the same size as (my name ) then laughed and came over and touched my arm.
She got a promotion at another job so she’s leaving.

Last week she handed me inventory and told me she was giving it to me because she cared about me.

The other day I told her to stop singing ( joking ) and she said she was gonna come over to my place late at night and sing me to sleep.

My last day seeing her she told my other manager that she wanted to take a pic with me. She wanted to take an individual pic with everyone even me but I was told she thinks I hate her.

We took a pic and she grabbed my whole body and hugged me close to her. We’re chest to chest. She sent her pics with 5 other people and in all of them she just had her arm around them. Nothing like ours. There’s like 20 other coworkers and she didn’t send any of theirs either. Including ours.
She left the work groupchat and it’s been a few days. Why would she want to take a pic with me but not send it?
Why would my crush do all of this?
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