help!!

i'm trying to find a bl manhwa. i don't remember anything about the main plot, but I remember a side character a really really liked: he was the mc's best friend and gave him a lot of advice. they met on an online forum for gay people when the mc was in highschool, and then they met up at a cafe and the mc cried at some point I think? He was ace/aro and he said something like "I prefer spectating relationships/watching from the sidelines"
I think this side character was blonde and wore a beanie, but I could be mistaking his appearence for someone else in the series.