If a person has their guard up, you need to move slowly with them. Do not introduce a ton of ambiguity.
After I shared a warm moment with this girl, the next time I saw her, she kind of noticed I felt attraction, but was trying to hide it.
From what I could retrospectively tell, she seemed to be trying to "test" if I was attracted and confirm it to herself. She did something flirty, then immediately walked away quick. This introduced a lot of ambiguity into the dynamic, and there was increasingly charged moments afterward which were also full of ambiguity and it was impossible to tell on either side what was going on.
The net result is that the air never really got cleared and my interpretation of what happened left me feeling like the person played with my feelings, so I eventually just iced them out completely. I erased them, even refusing to look at them, because I was deeply offended. I didn't get a chance to speak to them because I saw them at their job later, but wasn't going to talk about it while they worked.
I had to study what happened with AI models to get a deeper understanding and it seemed like the indicators pointed to this person wanting connection but being scared to drop their guard and pursue it, so they tried a lot of indirect things. The indirect things made the situation very confusing.
This is not good. If you notice a person sort of has their emotional guard up, you need to move slowly with them and signal safety. The way that you signal safety to a person like this is to talk to them directly and slowly, not giving emotional whiplash by trying to dance around them.
Some people like to use plausible deniability to shield themselves from rejection, but overusing this is not a good idea because others start questioning their own sanity or gaslighting themselves until they shut down.