Because from what I can tell here and a small handful of other places, pick me seems to be a retort from a petulant child who is jealous of girls who can get partners while they remain lonely. If it is an insult to anyone, it is an insult to the speaker.
So in order to be a pick me, it is marked by dishonesty or being disingenuous about their interest in their partners activities? Someone can be lonely and honest about it and not be a pick me?
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