Texaszebra82

So I'm not the only one who wants to read something like that.
I read one where the seme died and the uke committed suicide. (it was part of a manga with only short strories)
It's heartbreaking. ╥﹏╥
I thinks this is the one
http://www.mangago.zone/read-manga/ashita_shinu/

http://www.mangago.zone/read-manga/nigai_kajitsu/ the second story.
http://www.mangago.zone/read-manga/shiiku_gakari_rika/ hmm i dont know if this fits, one of the protagonists commits suicide and the story continues with the 2nd protagonist.
http://www.mangago.zone/read-manga/kokoro_o_korosu_houhou/ hmmm not exactly. one of them wants to kill himself to end his suffering then he decides to kill the other but well he fails. the uke suffers from depression(serious) (not at first but later on the series). the ending cant be concidered neither good or bad. (well its bad but anyways)

i would also like to recommend: http://www.mangago.zone/read-manga/let_dai/ the one who commits suicide is not one of the 2 main charas but we get to see his/her pov and its heartbreaking. (i was crying for an hour)

http://www.mangago.zone/read-manga/yami_bl/ only the first chapter

ashita shinu? (not sure if both commit suicide but interesting stories with a smilar theme)

http://www.mangago.zone/read-manga/the_inheritance_of_aroma/