Misunderstanding before dating?

How to clear the misunderstandings between the two people created by others before the dating starts? I mean if neither of them wants to start or reciprocate because of the horrible past... Or cuz of trust issues... or If a girl is beautiful the guy maybe thinks that she is taken ( like false rumours)... What i mean to say is that both r perfect for each other but their circumstances isn't!!!

Misunderstanding before dating?
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