His suffering was those months of the time skip, now it's Sakura's turn and her time to learn the truth
I'm too positive, it's why I still think the writers can retcon/gloss over it and make it so that Sakura actually never dated fucboi. Because going back to their conversation, even if the topic was unsavory, if they've been dating then fucboi should know by now how to best control Sakura and all he has to do is stand up, get romantically physical with her a bit and she instantly gives in to his decision.