I'm looking for to yaoi manga I read a awhile ago, one I finished and want to read again and one I started reading but can't find. One was about a man who hurt a boy he was friends with in high school and meets again on his bus, who want to take revenge. The other was about a couple in which one took the other for granted I believe he also cheated and they got into an arguement and the guy hit the jerk in the head giving him amnesia.

Pretty sure the first one is Sono Kuchibiru ni Yoru no Tsuyu.

Yes, thank you.