(Friendship) Me M29, I'm confused about my F21 co-worker friend. Can I get some advice on what is going on with this friend of mine?

Women on this sub, I need your opinion on this more than the men's opinion, I just want to understand what is in that woman's mind if it's possible.

I'm a quiet and good looking guy that often show no interest in women. I'm quite well on my own and almost a year back this girl began working at the same place as I did before my promotion to my current position.

So we got along really well, taught her some stuff and tricks , we got in touch daily talking about work, but everyone started talking how she was staring at me.

Whenever we met at corridors, she would walk past looking strait at me, waking past my office she would walk staring at the window. people started to make fun of us two being together, so I thought... Why not?

Got phone number, past entire nights talking together, flirts and compliments from both sides, asked her out and she accepted.

Until she just didn't... Cancel the date on the week we would go out. We talked less and less on the phone, then she asked me out to vent about she liked other guy already, which apparently happened while she was also with intentions of going out with me.

So after this I was glad it didn't work out since it was weird she was considering multiple guys, It was a divine deliverance for me to not go out with her. And I still have a friend to talk to, my work relations still intact. All good.

I'd be happy if it ended here, that above lasted at most 3 months. we still got to lunch together once in a while, but I still privilege going out with my other friends, and lunching with them. Cool...

But she kept showing interest all this time in the 5 months after, like saying she loves being with me, that she doesn't want to lose me for anything, that she loved meeting me, calling me darling, gorgeous, sweetheart. (all that was 5 months after the last part, the last 2 months she stopped doing that, explanation later)

I have other female friends and none of them treat me like that, and when I ask her out she denies... Can anyone makes sense of this situation?

And on the last two months, I think she realized in fine by myself, and stopped all that and begun another weird friendship with yet another guy M34 that works with her. Same story, starting each other, hanging out, but he goes all out getting angry at people that jokes with her and abandoning his friends to only have launch with her all week.

And since I'm friends with her still, I asked "how is the date with the guy going", she laughed it off, called me "baka" and said she still single...

I'm currently dating, so I cut 80% of my interactions with her (like talking all night, not going to lunch alone with her ever anymore, no more glances and smiling around), but she still my friend... So I'd love to know what you guys think is going on in this girl's head.

I don't know if it's relevant, but she is hardcore Christian and is hyperactive, going to the church all weekend, doing voluntary work, hiking, going to the gym, work, study, read, plays organ at the church.