It depends a lot, I think, on the circumstances of it ending.
I have several friends--some with benefits--among women no longer in the business. We will get together irregularly, and sometimes there is sex, sometimes there is not. Their choice each time. I don't pay. I often cook for them, they typically reciprocate or they pick up the tab at a restaurant. Quite a few who will call or write occasionally, invite me to stay with them if they know I am going to be in their town, and again, no $$ (but if I stay with them I bring a gift, as I would with anyone who puts me up for a couple nights).
If it ends and they are still working, I can certainly see where it goes bad all around. "You say you care about me, but you spend your money on someone else?" kind of thing. In those situations I certainly see things getting strained and good will stopping. If I stopped using my mechanic and went to his competitor, he would probably be less friendly too. Unless he retired.
I have several friends--some with benefits--among women no longer in the business. We will get together irregularly, and sometimes there is sex, sometimes there is not. Their choice each time. I don't pay. I often cook for them, they typically reciprocate or they pick up the tab at a restaurant. Quite a few who will call or write occasionally, invite me to stay with them if they know I am going to be in their town, and again, no $$ (but if I stay with them I bring a gift, as I would with anyone who puts me up for a couple nights).
If it ends and they are still working, I can certainly see where it goes bad all around. "You say you care about me, but you spend your money on someone else?" kind of thing. In those situations I certainly see things getting strained and good will stopping. If I stopped using my mechanic and went to his competitor, he would probably be less friendly too. Unless he retired.