how about friendship one?
http://www.mangago.me/read-manga/10th_you_and_i_fell_in_love_with_the_same_person/
its one of the best istg
cocoon of the heart ( the seme is awful in the beginning, but his devolpment is one of the best so keep going)
try these:
(getting over abuse, TW: sexual abuse)
http://www.mangago.me/read-manga/zankoku_na_kami_ga_shihai_suru/?l1So
(both mcs getting over unrequited love)
http://www.mangago.me/read-manga/form_of_sympathy/?0NxK
(moving on from ex)
http://www.mangago.me/read-manga/wind_blowing_tonight/
(past trauma + puppy seme/kinda slowburn)
http://www.mangago.me/read-manga/back_to_school/?Dgid
(unrequited love + mc growth)
http://www.mangago.me/read-manga/hate_mate/?X0l1
A romance where the story isn't focused on the love itself but more on the main character slowly healing from their past trauma with the help of their partner. Hurt/comfort, ty.