Finally. I can easily say I'm not a fan of love triangles blah blah but especially one happening here would be so ridiculous and out of place. SI and YW are clearly deeply in love with each other, the mc would not consider anyone else in that department either. Taegu guy is more of a side character in love with YW than a potential love interest
Hot take: the 2nd lead from love or hate never ruined anything. Mc chose to sleep around with the 2nd lead for half the story and then went back to the ML. The 2nd lead was basically used as a stepping stone for them to get together since they couldn’t be honest and get together themselves lmao
It's my opinion, you have yours and that's okay, I never liked Taku that ruined Love or hate for me as a reader.
No point rooting for Taegu, it's obvious yeongwoon loves Seo-in, dude can't even hide his jealousy from Seo-in past, Taegu have 0 chance y'all hear me, 0 chance. Let my babies Seo-in and Yeongwoon finally be happy together they love each other and Seo-in is clearly showing that. I'm rooting for my boys, this won't be like love or hate that second lead ruined everything.
Seo-in and Yeongwoon always and forever!!! Stay strong my babies!!!