yaoi where person 1 hurts person 2's feelings (cheats on them, breaks up with them out of nowhere, etc) then person 2 tries to move on and maybe dates other people. Person 1 sees this and tries to win person 2 back and person 1 suffers too
kinda? http://www.mangago.me/read-manga/hate_mate/?bQM6
maybe? http://www.mangago.me/read-manga/obscura/
yaoi where person 1 hurts person 2's feelings (cheats on them, breaks up with them out of nowhere, etc) then person 2 tries to move on and maybe dates other people. Person 1 sees this and tries to win person 2 back and person 1 suffers too