I'm looking for a yaoi where the couples relationship gets found out by a parent or one of...

http://www.mangago.zone/read-manga/katekyo/ (later on brother finds out and tries to break them up)
http://www.mangago.zone/read-manga/heaven_s_love/ (brother tries to break them up)
http://www.mangago.zone/read-manga/uchi_no_tantei_shirimasen_ka/ (i think the father & brother of the seme try to break them up)
http://www.mangago.zone/read-manga/dou_imo_nara_nai/ (father of seme tries to break them up)
http://www.mangago.zone/read-manga/kuroneko_kareshi_no_asobikata/ (later on in this series, the semes brother tries to kinda break them up)

http://www.mangago.zone/read-manga/yome_ni_konai_ka/
(the family interferes in both stories)

http://www.mangago.zone/read-manga/men_s_love/ (seme`s father tris to bribe the uke to break-up and keeps the seme busy away from the uke on purpose)
it`s not the first manga of this couple,
it`s part of a series:
http://www.mangago.zone/home/mangalist/7543/

http://www.mangago.zone/read-manga/jazz/ (in the last part of the story if i remember right)

http://www.mangago.zone/read-manga/kishidou_club_bangaihen/ (they were together as children alread but the aunt found out and succesfully schemed their break-up but they got together again as adults)

http://www.mangago.zone/read-manga/ano_kado_wo_magatta_tokoro/
(student x teacher relationship got found out and the school and the seme`s parents work together to keep them apart)

http://www.mangago.zone/read-manga/hokenshitsu_de_suki_ni_shite/
(seme`s brother tries to seduce the uke)
http://www.mangago.zone/read-manga/hokenshitsu_de_dakishimete/ sequel

Warui series from Sakuraga Mei (Towa`s older brother finds out and doesn`t want them to be together but he doesn`t really scheme anything)

http://www.mangago.zone/read-manga/ano_ko_to_juliet/

the gay-hating uke from Koisuru Boukon tries to break up his brother`s gay relationship but i`m not sure where exactly

Ouji Hiroimashita

Saa Koi Ni Ochitamae

Dou-imo Nara Nai

Dou-imo Nara Nai

hyper love power

Ouji Hiroimashita
hyper love power
Dou-imo Nara Nai
Saa Koi Ni Ochitamae

http://www.mangago.zone/read-manga/bomb_heaven/

«◈[]◈» Parent/Family try to break them up
http://www.mangago.zone/read-manga/kanashii_kotoba/
http://www.mangago.zone/read-manga/fuson_na_hana_o_aisureba/
http://www.mangago.zone/read-manga/tatsu_no_otoshigo/
http://www.mangago.zone/read-manga/memory_of_the_future/
http://www.mangago.zone/read-manga/kaze_no_yukue/
http://www.mangago.zone/read-manga/neo_arcadia_yami_ni_saku_niji/
http://www.mangago.zone/read-manga/follow/
http://www.mangago.zone/read-manga/ani_no_hanashi/
http://www.mangago.zone/read-manga/katekyo/
http://www.mangago.zone/read-manga/kishidou_club_bangaihen/
http://www.mangago.zone/read-manga/neji_no_kaiten/
http://www.mangago.zone/read-manga/gochisousama/
http://www.mangago.zone/read-manga/kuroneko_kareshi_no_asobikata/
http://www.mangago.zone/read-manga/kuroneko_kareshi_no_amaekata/
http://www.mangago.zone/read-manga/kuroneko_kareshi_no_nakasekata/
http://www.mangago.zone/read-manga/kuroneko_kareshi_no_itoshikata/

i have a liking to the kind of stories you've mentioned and so far i've collected family-oriented stories and approval stuffs in my list. just read the reviews you can choose the specific titles you wanted
(gay in family: out of the closet, proposal and partner approval list) http://www.mangago.zone/home/mangalist/26296/