I read this manga a couple times but i still don't get Chapter 5 page 180-181

Ch5 only has 60 pages??

I mean 57-58

From my understanding, the stronger an individual's feeling for someone the stronger their pheromones. So basically those two idiots like each other so much their scent got too strong for their current medicine to repress. It's also the reason why the uke asked the seme if he smelled anything when they were fighting, presumely because if the seme hated/didn't like the uke anymore he wouldn't be able to smell anything/the pheromones wouldn't affect him.

Lmao that was a huge difference

I saw 180-181 at the bottom so i got confused

Basically, when you like someone, they'll emit pheromones. So the stronger you like someone/love them, the stronger the pheromones they emit. So uke likes seme so much that he thought the drugs the seme is taking aren't taking any effects