What does that mean, if psychology is true?

Ay__en__
All the signs in psychology that the person I thinks about also thinks about you, all the signs are happen with me and true
(I am in love, and this person I don't know if he likes me or not, cause when someone asked him, Is he likes me he said no)

What does that mean, if psychology is true?
What does that mean, if psychology is true?
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