Any yaoi manga where the uke or seme cheats in the middle of the relationship?

following

following

.

I don't remenber now... But i will try to remenber... ლ(´ڡ`ლ)

http://www.mangago.me/read-manga/life_senjou_no_bokura/

http://www.mangago.me/read-manga/waltz_with_a_black_cat/
http://www.mangago.me/read-manga/sakasa_moji_nara_suki_da_to_ieru/

2 history - it's not the uke/seme but the wife
http://www.mangago.me/read-manga/don_t_cry_my_baby/

there is more... i will search for them (づ￣ ³￣)づ

thanks y'all <3 ヾ(☆▽☆)

that one broke my heart for the millionth time Σ( ￣□￣||)