You should try overdose even it's similar to what you are asking for but here this are all manga by the same actor: aishuu, anata wo mamoritakute, lover's position, Machibito, toiki yori mo yasashii, usotsuki na kimi no toriko, aibou no jouken,
try this one too http://www.mangago.zone/read-manga/koishiteru/
aw honey i'm sorry i was not able to tag those second chances stories i came across to but i can give a few right now
http://www.mangago.zone/read-manga/puchitto_hajiketa/
http://www.mangago.zone/read-manga/trap_ootsuki_miu/
http://www.mangago.zone/read-manga/jazz/
http://www.mangago.zone/read-manga/hatsukoi_no_atosaki/
Thanks everyone! I'll go check them out.
Can be yaoi or shoujo, but I'm looking for mangas where the couple used to have a manga relationship, like you know the usual fall in deep love sort of thing but instead of the story being on that, the story happens later in life after the fairytale ends and they've broken up maybe they meet each other again after a few years but - oh yeah please make it like ... happy endings because I don't wanna keyboard smash with frustration and regrets lol thanks