maybe bcs he's old that's why he's becoming more sensitive and insecure?

Tbh a lot is insecurities would vanish if he would just open up like she obviously does feel the same and does not mind his age and even accepts sol

I think there's some backstory there, like when he dreamt about the wedding as well. It was Harang's face but it seemed like a situation that he lived through. Foreshadowing? Who knows. He also knows he's place kinda, she accepts him but tbh she would have to deal with a lot of backlash for dating him