
For me yes. The first time I've read this manga, I also have that kind of reaction and stop reading it. But I felt like I have to read it. Along the way, you will see a lot of love and tragedy that has happen to them. But if you be patient, you will be rewarded by a beautiful ending and it's worth it.
Ps: it's okay if you don't want to continue reading it because your heart can't take it. I just want to give you my opinion about this manga.

Please, don't stop. Kain redeemed himself, and really really loved and cared for Mel till the end. The manga shows how he changed just for Mel.
I just... don't want you to think badly of this manga because is such a masterpiece.
But, if you read it completely and even so think the same, I'll understand. Because in that case, it'd a matter of tastes :)
I can't read this. What the fuck. Why is the cop always cheating? And the blondie getting all the suffering? nop I can't