Searching for yaois where uke find out that his lover is cheating on him, so he dump him and find a new lover.
I don't like stories where one of the two cheat and the other acts like is nothing
http://www.mangago.me/read-manga/meguriau_yo_baby/
Uke is the cheater, not seme though.
I'm searching for yaois were a third person shows up and flirt with the seme, making the uke insecure... It's not important if there is a real cheating or not
http://www.mangago.me/read-manga/hidoku_shinaide/ this has tons
Something like this?
http://www.mangago.me/read-manga/scarlet/
I love manhua, but the problem is that when I read I really cannot finish their name. I always ask myself if they set only the first name or the total name. It's sooooo weird