Holy fuck Taeyang is actually a really amazing character, at first glance he's hot headed and only talk with his fists, but now we learned he was just being honest to himself and his friends. MC sounded like a nice guy throughout the entire story, but as stated in this chapter he's just a hypocrite, has no trust for anyone around him.
I kinda liked the MC as he somewhat had the Hachiman vibes, but after all the previous incidents he is not getting any development at all, I'm gonna wait and see how he grows after this chapter, unless the author wrote all these drama bullshit just to throw everything back to square one.