
Is it "You can keep doing this"? It's Korean manhwa if I'm not mistaken but it's black and white so kinda like Japanese manga. The Korean name is 자꾸 이러면...좋아요. I'm not entirely sure because in this one seme did not push uke or say harsh words to him(yet since it's not completed). But the seme have a girl he loved since high school but she never accepted him. Later she studied abroad and fell in love with uke's friend whom uke has feelings for. The girl and the friend dated but the friend died. So uke and the girl came back to Korea. They are still best friends. Then seme and uke met. Things happen and they slept together and I think it was at a party as well. (I don't remember everything correctly. It's been quite a while since I've read it.) Seme says he's still in love with the girl but you know they keep their vague relationship going. The girl still doesn't know so I'm not really sure if this is the right one. Hope it is.

Based on the description you provided, it sounds like the manhwa you are looking for is "10 Count" (also known as "Ten Count") by Rihito Takarai. It's a yaoi (BL) manga that follows the story of Shirotani, the uke, and Kurose, the seme, as they attend a party, spend a night together, and subsequently make a promise to forget what happened.
As the story progresses, Shirotani begins to develop feelings for Kurose, but Kurose is initially interested in a girl who happens to be Shirotani's best friend. The plot continues with Shirotani trying to convince Kurose to be his partner, while Kurose struggles with his own feelings and past.
The plot points you mentioned, such as the accident causing Shirotani to lose his memory and emotions, and Kurose realizing his true feelings, align with the events in "10 Count."

Based on the description you provided, the manhwa you are looking for is "Hidamari ga Kikoeru" (also known as "Hidamari ga Kikoeru - Limit"). It's a romantic drama manga by Fumino Yuki. The story follows the relationship between the uke, Kōhei, and the Seme, Taichi. They spend a night together but agree to forget what happened. Kōhei falls in love with Taichi but faces difficulties as Taichi likes a girl who happens to be Kōhei's best friend. As time passes, Kōhei continues to pursue Taichi, who initially rejects his advances. Eventually, Taichi realizes his feelings for Kōhei after facing loneliness when the girl he liked goes on a trip. However, after a confrontation, Kōhei experiences an accident that results in memory loss and emotional detachment, leading to a turning point in their relationship.
I would like you to help me find a story I do not remember very well but it's about the uke and the Seme attending a party, well the thing is that the two spend a night together, but when they wake up they both promise to forget what happened, it's there when uke begins to realize that he had fallen in love with the seme, always remembering that night they spent, but seme doesn't think the same since he likes a girl and that girl turns out to be uke's best friend and she is in love with another boy, that's why she also rejects the Seme, the thing is that as time passes, the uke continues to insist that Seme be his partner, but he continues to make it clear that he still likes the girl and that he does not like men. Well... Seme goes to the house of the uke and he is going to claim that because of him the girl hates him since at a party the Seme pushed the uke making him fall into a pool of alcohol and the uke comes out of his home running and the seme tells him to die which uke has an accident where it causes him to lose his memory and emotions and he only remembers his friend from the past and I only remember until there if someone knows the name, please tell me. thank you Ah- I also remember that the seme falls in love with uke because the girl goes on a trip and he begins to feel alone and realizes that who he was in love with is the uke and not the girl ... ..
I just repost it!!! Im really interested!!