Despicable
Complete | Psyche Delico | 2015 released
Psyche Delico has proven herself as the queen of love triangles. They're all different and not trope. Will need a tissue for one of the stories, and call me crazy but I like the first love triangle. They will definitely never be bored. The 2nd was beyond sad, but it contained a major button pusher to me.
Sorekara, Kimi wo Kangaeru
Complete | Komatsu | 2000 released
So I get that all of these stories end in separation. I think it'd be amazing if Sensei wrote a 2nd manga showing them all getting back together. If you like angst and rergrets, you can stick with th first manga. If you like HEA, you continue to the second manga:)
Beautiful Days