Hi everyone, I'm a new member here.

Well I'm looking for an old manga that I'd read since a long time ago.

It was a shoujo manga, with a little bit complicated love triangle (actually 4-angle I think?). The background was in high school. The main character was boy A (sorry I dont remember his name). He was a cheerful boy who always smiled, he had a small figure.
The other male character, boy B, was completely different. Boy B was cool, sometimes kinda cold, and really tall.
Boy A fell in love with girl X, a short-haired cute girl, but girl X liked boy B. However boy B didn't like her back.
And there was girl Y, who'd been friend with boy A, and secretly in love with boy A. She was a beautiful girl who had a really long curly hair. And boy B liked girl Y.

Well since I'm not good at explaining, it sounds complicated. But if anyone thinks this plot's somehow similar, please tell me.

Thank you so much <3.

There's a Love Polygon tag, you should check it. I have read lots, but somehow reminds me of Dear!