Responses
Memory loss, but probably not what you were looking for?
http://www.mangago.zone/read-manga/restart_harada/
Someone was looking for this manga two and a half years ago. (⊙…⊙ )
http://www.mangago.zone/home/mangatopic/913102/?page=2
following
It’s a yaoi where the Uke keeps telling the seme that he likes him and the seme keeps rejecting him. Eventually the Seme falls for he Uke but already has a boyfriend (or girlfriend. I forgot) and breaks it off with them with a farewell kiss. The Uke sees the farewell kiss but doesn’t know its a farewell kiss and decides to give up and sends the Seme a text message saying goodbye or something. I don’t remember the stuff that happens after, but I’m pretty sure the Uke gets hit by a car or something and the seme tries his best to get the uke’s memories back.