Unnecessary plot lines fr

My problem is, did they have to have sex in the alley? Did grey hair had to rape purple hair? Well the answer, unsurprisingly is no. I think the author just wanted an excuse to make the omega go away but like, why make him fall for purple hair in the first place, you could have just made purple hair pounce on the omega bc his rut was coming and have the same plot with the sister's friend telling cha jun to come get purple hair and cha jun grabbing purple hair out of there before he made a mistake and then, omega and purple hair could talk it out and the omega says that he feels uncomfortable or even disgusted bc he doesn't see him that way and it is traumatizing. the plot would have ended up in the exact same place as it is rn, purple hair would feel shameful, cha jun would be mad that purple hair did succumbed to his instinct like an animal and the omega would be out of the story and live his life
It would have sucked for the omega but it would have at least made purple hair understood cha Jun's opinion on instinct and they would have talked it out better and also no rape