It's where the seme didn't want to commit, no matter how hard the uke tried. The seme even said he wouldn't draw the uke because he wasn't pretty. Then when the seme actually fell in love with the uke, the uke no longer liked him (the same happened in his past relationship). There was also a catus.
Pretty sure it’s sand castle: https://www.mangago.me/read-manga/sand_castle/

Any mangas like Sand Castle where the seme is yearning and so desperate in a pathetic way? It's especially great if they deserve it. Or a uke that gives bad treatment cuz the seme deserves it (basically having a backbone that most ukes lack) ?