To click, in this context, means when two people are mutually interested.
My mom asked me if I saw any pretty girls at uni and I said that I'm not into any of them and she was like "You're too picky.", just a classmate once told me. My parents would like me to have a girlfriend but I don't see that ever happening.
On the other hand, I read on the Internet that having low standards makes you desperate, so you should be selective.
Contradictory information.
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I'm a Romanian aspie.