Cut-although they both have sad things I think...
Running on Empty is a little similar to this, shounen ai though...but its super good and I adore the uke in that...well the one I'd peg as the uke...
http://www.mangago.zone/read-manga/konbini_kun/ its maybe not SUPER sad but the kid had some trauma in the past
http://www.mangago.zone/read-manga/ikumen_after/ he's a widower...
http://www.mangago.zone/read-manga/no_color/ I don't know that its a sad past but the uke is pretty shut in and stuff and the seme goes in to try to draw him out of his shell...similar feels to what you're looking for....a fave...
Dog Style might qualify, its awesome and worth a read in any case...
well those are all I could find or think of
Thank you, I read some of this and I really liked them, but I'll read the ones I don't know yet, thanks a lot!ヾ(❀╹◡╹)ノ~
my 'baggaged guy' collection is all about that. those in the list are the ones i like. i also specified if it's the uke or seme so just choose the uke ones. http://www.mangago.zone/home/mangalist/72757/
Thank you so much, some of them are from mangakas I really like, so I'll probebly love them!(⌒▽⌒)
Thank you for your list, I'll check it! ╮( ̄▽ ̄)╭
Any yaoi where the uke has a really sad past and the seme helps him get over his trauma?