Ah, now this is gonna be a long ass paragraph.
The first heartbreak will happen quite soon. I think. When he finally had the courage when the top gave away his necklace (its in the novel, not sure if its in the manhwa yet) Which is very precious to him, to the asshole whore.
The second breakup is when they finally "understood each other", while that top did many things to get the bottom back, MANY. But then the whore did a LIL trick, that made the top hit the bottom with his own car, and he threatened the top to marry him because he had something that will ruin the bottoms career. which caused karma, but the bottom remembered it later on, while the top is already away because he wanted to take on the whole mistake.
The ending is quite uhmmm. So they lived together, in the same house as before, and caused the bottom a lot of insecurities. They almost break up, AGAIN. But the ending was them living together.
I finished the novel for this.... If this manhwa will be the exact same storyline... Im sry but it will hurt much more. SPOILER
Even when they "got together" again: without misunderstanding, this fucking bitch will destroy it all again... It will break you sooooo much moreeeeeeee. But happy ending ┗( T﹏T )┛