Show him how it's done. Break up with him decisively, with no chance of a reconciliation and never speak to him again. If there's anything you want to give back to him or anything he'll use as an excuse to see you in the future, bring it with you tonight and just give it right back.

Make it short, to the point, and then walk away. You don't owe this guy anything, and after the way he's treated you repeatedly, you'd be a fool to expect anything from him but more of the same.

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I think all women really want is to be proven wrong about men.