Help meeeeeeeee

So, Hahahaha I didn't save it in my already read thing and idfk the title. It's a Yaoi Manga, I'm pretty sure the bottom have black hair, and the top have pink hair. The Top used to be a fuck boy and the bottom is a quiet person that's being taken care of by his sister? The first chapter kinda told us that his sister teach him things. And the last couple of chapters, the bottom got jealous because he saw the top with another girl. And it turns out it was the tops mother. So, idfk, the top fuck the bottom in some old (school, mall, etc.) building and its the hang out spot for the top. And they just kept fucking or whatever..... This is is a shitty description but that's all I remember