My guy friend says I give off an aura?

Following on from another question I had a guy says I give an aura off hence why he said what he did. About no expectations on night out, yet he flirts and tried on loads in past. Why or what does aura mean?

Also why when I say how that accusation made me feel and I feel he is attracted but won’t admit as got girlfriend and he closed book. He didn’t really reply just he worded it wrong to me. Is he annoyed or trying to hide or forget it.

My guy friend says I give off an aura?
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