Oyaoyaoya's Favorite

Does anyone know about a yaoi manga where the uke is not giving up on the seme even if he is rejected (many times, I think)? Then one day, the uke saw the seme kissing somebody, that was a goodbye kiss because the seme fell for the uke. And because the uke is spacing out, he got hitten by a car or truck? that resulted to an amnesia. Then the seme is trying hard to get the uke's memories back.

Someone asked this before.

Sorry, this is the only thing I can remember from the post.

Thank u in advance!