What does this moment with mean between two people?

I have been interested in this girl (I am a girl too) for a while and she has been interested in me for a while, but we are both shy to make a move (she shown interest first) and there were and are obstacles (men), but I’ve been messaging her when she was going on holiday, her birthday and after her birthday as I know she won’t, so as I have started to message her more, we started to eye flirt again and this happened:

I was coming from my break, she was standing on the other side of the door to let me pass when I opened the door for her. She was quiet and shy, but I was already looking at her happily and she then looked at me. Our eyes connected with one another, where there was we this invisible warm thread connecting us as we were looking at each other. Her eyes were smiling with a twinkle in her eye. She then shyly looked down in a happy way. I then got shy and looked away.
What does this moment with mean between two people?
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