Is it normal that im attracted to boyfriend's bully & I'm cheating on him?

We were at a party and he beat my boyfriend up. HD used to bully my boyfriend in high-school. He's just so masculine and manly, he takes what he wants. The sex is so amazing, I let him do whatever he wants, nothing is off the table.

Is it normal that im attracted to boyfriend's bully & I'm cheating on him?
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