I hated how this BL portrayed TaeKyung's and ShinWoo's relationship.
At the beginning of this drama, I was pretty much rooting for them to end up together since their personalities clashed. I really enjoy enemies to lovers stories, and I thought this was going to be one of them... And then everything went downhill.

After TaeKyung and DaOn started catching feelings for each other, the story only revolved around them, leaving ShinWoo's character to the side. The love triangle transformed into ShinWoo being the third wheel.
This could have been resolved if they had made them break up explicitly and focused on ShinWoo and TaeKyung, but until the last episode, TaeKyung and DaOn openly said they liked each other, and they seemed to work on their relationship.
ShinWoo stopping TaeKyung in the last episode really made him choose him over DaOn? What would have happened if he wasn't there to do that? Yeah, this didn't sit right with me.

Realistically, this drama had some good moments and some funny scenes, but it failed to make me feel for the main couple. Everything has been set up for TaeKyung and DaOn to continue their relationship, including things like the bracelet and DaOn finally saying he likes him. They could have just gone the easy way and made them end up together in the final episode.
Even though I originally rooted for ShinWoo, in the end, he just seems like a replacement.

In conclusion, the BL drama fell short of my expectations as it sidelined ShinWoo's character and prioritized TaeKyung and DaOn's relationship, leaving ShinWoo feeling like a replacement with a resolution that didn't satisfy.