This show is not a typical BL. It explores the love among queer people basically because not everyone goes through "eternal love" which is highly romanticized in hetero society. Ko yeong loved every single person he met in his lifetime. Its just a time span, he has loved, been used, sometimes he was toxic and his relationship did not work out quite well with every single person he met. Gyu ho accepted him despite of having HIV but since his past relationship (he really loved loved noh yeonsoo) traumatized him he kind of felt very insecure about himself. But if you ask who really loved i would say everyone. His mom, Mi rye, Gyuho, Nam kyu, Yeonsoo, Habibi everyone was a part of his life. I hope this explains
I feel like the relationship with no yeong su is the reason why his relationship gyu didn't work out. That relationship…
I also feel the same rage as ko yeong atp... the toxic relationship must have left a bad impression on him and made him insecure but it is really a shame that Gyuho and him didnt work out. ps. that punch in ep 4 was so satisfying like if Ko yeong didnt punch him I would have