Do men fall out with their friends over women?

This guy Ian implied subtly through a Facebook post that a mutual friend Jason messed up Ian’s romantic chances with me and screwed him over by making up stories about the negative things Ian was saying about me behind my back. That he betrayed his trust. Through a disturbing image of a cartoon closely resembling Jason facing the butt cheeks of a guy resembling Ian. Referring to ‘fucking’ and ‘not being divided.’ Do men actually behave this way, mess up other guys’ chances with women if the woman likes one of them over the other? Jason has been sulking since I rejected him for the fifth time as more than friends.

Do men fall out with their friends over women?
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