Responses
I think jitae is just overwhelmed with relief and was very touch when he finally realized that the hyung he love is indeed his ally. His passionate feelings might have finally erupted after realizing that fact , and since he was already horny when taking the drugged mc back home (≧∀≦)
Before that he will even hideaway the mc even though he thought the mc could be an accomplish to his mom's murder since he was at the crime scene.
Yeah tho that changed my view about him
Just my opinion but imagine talking about your dead mom and shit then boom you're horny (not complaining but just a thought)