This is so true and something people don’t want to understand. Yes Seojun and Joohyun’s relationship isn’t perfect but they grew up in situations that made them the way they are. I’ve always seen Seojun as someone who was traumatized by a relationship, which is why he is so hesitant to take it in that direction with Joohyun at first. I also don’t understand why people act as if the blonde dude is Seojun’s bestie. They just met at the club and Seojun just went along bc he had nothing else to do at the time. Seojun even warned MC not to meet or talk to him because Seojun knew he was garbage. Ya Seojun isn’t the best but you can tell that deep down he never wanted to harm Joohyun, esp in the later chapters when they finally talk more again ╮(^_^)╭

Honestly, why hate on characters with trauma. Yeah MC is quite stubborn but he never showned any sign liking Minwoon beyond being friends. He was dependent on Minwoon because of his childhood trauma and treat him the same how he treat his Noona.
And for Minwoon, he is indeed nice but the 'kissing' your friend while their sleeping is creepy as fck. If he had that kind of feeling for the MC, least he could do is confess, MC doesn't owe him his lovelife.
ML is a fckboy because he was played at by the the person he loved first. He probably develop that kond of lifestyle after getting played and dump by his hyung.
MC and ML started off the wrong foot but initially, ML never outright said they are in a relationship, he mentioned previously they were fck buddies. Their relationship develop from that to much more deeper. And MC also asked for unprotected sex, hence both of them are responsible with the pregnancy.
This characters are mostly on their early 20's. It's that age where most people are still enjoying life. But they are developing their characters base on the situations they ended up with. Except for the ABO part, a lot of this things actually happen in real life too.