his friends did not make him think that way, he has always been gay and we have been shown that he just didn't realized this abt himself (and this is common too with a lot of ppl living in homophobic environment). what they did is definitely wrong but even without their influence and even if the mc continued to date women, he is still gay, he may just have a much late and natural realization to it

He realized his gay. Glad he did. But let's be honest, his friends made him think that way bruh... if those guys didn't made their move, he'd still be dating girls that are like the girl version of his friends. I mean, there could've been other ways to make him realize he's into men... but this is BL you have to expect the unexpected and not so reasonable act to get to the point.
I can only guess that those two would go there and get Eunchong... wonder what'll be the ending?