
but in actuality I think it's cause the mc's crush never came off as a crush to him but rather an obsession with the ml's sperm, after they jad swx and the mc said all that stuff about being in love with the ml I guess he's starting to take it seriously and realizes he too light have lingering attraction (to that hole)

Yess, also, there's the fact that Sunwoo kind of distanced himself after they slept together and yk the saying, sometimes you have to loose someone before finding out what they really mean to you. I think ml never had to go without Sunwoo so it's his first time realizing how much it really meant for him (even if it was annoying)
Why did you rejected the mc for so many years if you obviously are crazy in love for him? Or did you fall in love for him after the sex? ( ̄∇ ̄")