KR Novel: I'll do that marriage

However, in the very first chapter of the manhwa we saw her going for the lips to kiss him when she first put him to sleep.; But he stopped her and she kissed his forehead instead right? 

https://newtoki69.com/webtoon/2561559/그-결혼-제가-할게요-8화?page=2&toon=일반웹툰&spage=1
the ML is so incredibly petty. he's jealous of the "cute" gingerbread men cookies that he snapped all of their heads off. LOLZ 

thank you for the spoilers>< 

Is the white-haired dude a stalker? a failed and incompetent one?

EDIT: I think its probably the ML's power-hungry brother? I didn't notice the similarities until I saw a near panel with both characters side by side. 

nice to know it least has a novel 

 

I already reported it. A moderator would merge the threads together now.
 

Any spoilerr?