(4) But we do not agree that when pleasure is withdrawn uneasiness at once ensues, unless the pleasure happens to have been replaced by a pain: while on the other hand one is glad to lose a pain even though no active sensation of pleasure comes in its place: a fact that serves to show how great a pleasure is the mere absence of pain.
Okay, that confirms the model I use for both directions; especially: The gladness of losing a pain is a consequence of having lost the pain; it is not what caused the pain to be lost in the first place.
Thank you! That's a relief