I'm looking for a yaoi manga where the seme forces the uke into a relationship with him or...

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

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

http://www.mangago.me/read-manga/myuzu_no_gakuen_de_aou/
(Vol.2, ch.:4-5.)

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

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

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

http://www.mangago.me/read-manga/yome_ni_konai_ka/
http://www.mangago.me/read-manga/royal_fiance/
http://www.mangago.me/read-manga/koi_wa_maiorita/
http://www.mangago.me/read-manga/my_darling_is_english_gentleman/
http://www.mangago.me/read-manga/brother_ougi_yuzuha/
http://www.mangago.me/read-manga/aishuu_no_kanon/
http://www.mangago.me/read-manga/honoo_no_suna/
http://www.mangago.me/read-manga/nessa_no_kusari/
http://www.mangago.me/read-manga/master/
http://www.mangago.me/read-manga/like_the_barren_wasteland/
http://www.mangago.me/read-manga/meikon/

soujou no koi/kyuusou ha cheese series. they switch roles during sex later on in the series frequently. but the seme in the beginning is the main character (a salaryman in a failing marriage) 's obsessive gay stalker from college. realistic and emotional character dev