Are men ever competitive over women?

I was watching a tv show where two really sexy women were fighting over this one really ugly guy. One of them got really jealous and nasty when the other one slept with him, saying she’d broken the girl code. Women don’t often act like this, I hope, but clearly sometimes, they do. Do men ever behave like this over potential mating/dating opportunities with women?

Are men ever competitive over women?
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