I think he's well aware that the break up was because of them both.
If you're not ready to say the "ily" sentence and your partner keeps pressuring you ab it, it's understandable that it would make it unbearable at some point for MC. But he's well aware that it's difficult for ML as well and that's why they broke up, bc this situation made it hard for them both.
i'm pretty sure he didn't mean to say we broke up bc of u. i think he's gonna say we broke up bc you insist on me telling ily to u which is literally what happend actually. shiyoon is sure annoying of a guy but i don't think he's that bad. we've seen worst ones lol
that's definitely a good point. And I totally understand not being ready to say "I love you" to your partner, but a little communication could have easily solved that. If that really was the issue, mc should have been honest and told ML that he feels pressured and go from there. But mc didn't even bother to explain anything to him and just broke it off.
ML is obviously the playful type. If mc finds that annoying then he shouldn't be with him in the first place, their personalities aren't compatible. So for me personally the lack of communication and honesty is what's most frustrating.
Oh I agree that communication would solve it. But lack or miscommunication is very much realistic and even if you want to you sometimes don't for stupid reasons (like ego and such). So I just think sometimes it's unfair to be so harsh with characters when we ourselves are definitely not perfect irl.
I knew there was no hope for this mc I swear to fcking God, if he tells him it's his fault that they broke up I'm gonna jump into this webtoon and beat him up myself!