I need a manga where uke broke up with seme it could be they never got back together somet...

This one hurt like hell.

http://www.mangago.zone/read-manga/10_years_where_i_loved_you_the_most/

I dunno if you will like it you can also check this out.

Back to School.
Behind the Scene
Wistful Summer.
Broken Season ( spoiler a lot of things happen )
Lover Boy
Black Lotus
Ways of Parting

Let me know if you have read them already but yeah

oh My I read some of them but thanks

There’s no breakup in this but something worse than breakup separates them and it will hurt you like hell cuz it’s a tragedy that you will need therapy
http://www.mangago.zone/read-manga/lonely_to_organdy/