Can recommend me yaoi manga where the seme is cheating on the uke. Or the seme is just pla...

followingヾ(☆▽☆)

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

Maybe try these::
http://www.mangago.me/read-manga/hina_wa_mitsuiro_no_koi_ni_torawareru/
http://www.mangago.me/read-manga/overdose/
http://www.mangago.me/read-manga/sukidesu_zenbukudasai/
http://www.mangago.me/read-manga/waltz_with_a_black_cat/
Both cheat (Seme 1st) http://www.mangago.me/read-manga/warui_yume/

following

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

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

http://www.mangago.me/read-manga/yachin_hanbun_no_ibasho_desu/ (ch.6)

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

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

Following~

Calling