He's sleeping with three other women

MY boyfriend regularly beds three other girls behind my back.

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He boasts to mates about the great sex he has with his “harem”.But these women are using him. They all work at his firm and use him for free nights in hotels, cocktails and lifts. He has a nice car and a decent salary, and several people have told me that these cynical women laugh about screwing him over.

I've tried telling him that he's being humiliated and wrung dry, but he refuses to believe me.

He genuinely thinks they like and rate him.

Instead, we row about my jealousy and my possessiveness.

I worry about him. I’ve told him that he needs her to stop mucking around and commit himself to me, but he refuses to see sense or settle down. He thinks he’s a playboy.