Also, Haesoo's throwing those cigarettes is actually so powerful. Him, smocking is linked to JW. It was a way to stay close to him, to have something that reminds him of JW since he couldn't have him. Those cigarettes are literally the representation of their past relationship and all the bad sides of it. Them loving each other, but not admitting it, making the other suffer, lying to each other, hurting the other...So him throwing those cigarettes is like he is finally ready to move on from the past. Now, JW is his...He doesn't need those anymore.
Also, Haesoo's throwing those cigarettes is actually so powerful. Him, smocking is linked to JW. It was a way to stay close to him, to have something that reminds him of JW since he couldn't have him. Those cigarettes are literally the representation of their past relationship and all the bad sides of it. Them loving each other, but not admitting it, making the other suffer, lying to each other, hurting the other...So him throwing those cigarettes is like he is finally ready to move on from the past. Now, JW is his...He doesn't need those anymore.