I don’t get it either
The absolute shock of realizing that he messed up so bad that mc might have sex with someone else opened the floodgates of memories and it came back so naturally that he didn't realize it at first
Lmaooo
I feel like it reminded him of the first time Gyuha left him so his brain was like oh hell nah and went wooosh remembering everything. Ngl it's kinda confusing and underwelming but hey, at least we can all get back to the kids now!
At what point did the memories return, had to re-read chapter 80, but I still don't understand