Is this a typical trend for guys?

In high school I noticed that a lot of guys would chase after intelligent and chaste girls who weren't too good looking and had average or slightly bigger bodies such as 135 or 140 pounds while the average teenager is 120 pounds. There faces might have been a 5 out of 10 and the average high school student is a 7 out of 10. I think the guy might assume a quiet and unattractive girl would be less disloyal or unfaithful.

Is this a typical trend for guys?
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