I disagree on Gongchan, his over acting is painful to watch (hopefully it will get better in later episodes).…
But Wonyoung's character is like this. I sometimes felt annoyed by him while reading the manhwa, so I don't think Gongchan is overacting. Wonyoung is really silly most of time.
The main leads are just not working for me. They look too stiff for me to believe that they can be attracted to…
The part of straight guys isn't wrong tho cuz Wonyoung is straight and although Taejun is gay, Wonyoung isn't his ideal type so it's normal to seem that way, unlike the second couple who had crush on each other since high school.