Should I break up over this?

My fiancé of 7 years and I were watching the halftime show with Jennifer Lopez and shakira and I noticed that he got a boner from it. I was so pissed and i told him to turn it off to which he said no because the game was about to come back on (he’s a huge 49ers fan). I told him to turn the game off if he loves me or I would be leaving him because its so damn disrespectful for him to get a boner over other women. He told me it’s a natural response, he can’t help it, he loves me, he thinks I’m more beautiful and sexy, etc. honestly I’m fucking done because to me that’s cheating. Having a sexual response over another female is cheating. I ended up going to my parents for the rest of the night. Should i break up over this.

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