Not fapping but relapse. Because we have to do No PMO i.e. no porn, no masturbation , no orgasm. And sex comes under the category of Orgasm.
Depends on the individual’s goals I would say. If your mode is no PMO, then sex is a relapse. Else, it’s not.
I agree. I think it also depends, are you hooking up with a random person for pleasure or with a spouse, or something in between?
First decide what you want to accomplish, then decide what will help you get there.
If your goal is no pmo, then it shiuld be a relapse, else it is not so harmful as fap.