
He was ABUSED for making mistakes as a child like he seems to be pre-teen there where basically your emotions are the most sensitive not to mention you're also old enough to remember until adulthood. Anyways, the abuse went on for so long that now even small criticisms makes him anxious because literally it got engraved in his mind that mistakes = abuse. I'm not an expert yet but I could say that's PTSD. The way he reacts is a TRAUMA RESPONSE. It's UNTREATED, HE DIDNT HEAL FROM THE ABUSE. What he has isn't just simply anxiety, it's GAD or General Anxiety Disorder or/and PTSD.
MC doesn't overthink out of just insecurity but out of DEFENSE. You can literally see here that he's preparing himself to let go of the ML if he ever gets "replaced".
The fact he didn't even planned to be a gymnastic, he was a kid having fun at the playground and probably took gymnastics to make his parents proud. It was out of passion for him but at the same time it was his hell. No wonder MC is so introverted and wants stuff VERY private.

The wings are so unique abt this manhwa ngl also i just saw the S-line trend of this series and I was suprised the ML was virgin but I completely forgotten this is literally isekai to a game so ofc he's virgin lmao. Made me read again tho since both virgins are so rare in BLs nowadays cus I forgot I read this and let it marinated for awhile.
Saw this in tiktok and thought it would be funny cus a thief saw gay porn lmao but like I should've expected rape incoming