http://www.mangago.me/read-manga/spring_snow_odongtong/ it’s pretty short though .
definitely this one: http://www.mangago.me/read-manga/10_years_where_i_loved_you_the_most/
and this one's not really BL and not sad but it makes you re-think your actions: http://www.mangago.me/read-manga/nanohana_boys/
Did u watch why r u's episode im still bawling hard ..
Banana Fish
http://www.mangago.me/read-manga/banana_fish/

Right now I'm searching for sad BL manga because I'm in the mood to cry right now... After reading sad dj bl manga, I need more... Did u have recommendations or list of sad BL manga? Thank you