The guy I’m seeing lost interest in me when I repeatedly refused to have sex. I made it clear that it’s only for exclusive relationships, even though I do love sex and was very tempted to do it since I’m attracted to him. Did I do the right thing?

Let me get this straight.

You repeatedly refused a man only interested in hooking up with you?

Is this man incapable of understanding rejection the first time around? I think not. Sounds to me like he was trying to “wear you down” (i.e., keep pestering and harassing you until you stopped defending your “no”).

This guy sucks at consent, I would say intentionally so. He had the option of trying to hook-up with like-minded individuals, but he decided (yes, he made a conscious choice) to bother you even after you made yourself unequivocally clear to him.

Yes, you did the right thing. Ethically non-monogamous people can honor their own preferences without bothering people that don’t want what they want.