Couples where at least one of them initially hates the other. Especially long term hatred. No yaoi, but shounen ai is fine.
http://www.mangago.zone/read-manga/a_beastly_scandal/
_Otakare Fujokano (incomplet) _Shitsuji-tachi no Chinmoku (in) _Kodocha (complet)_Kedamono Kareshi (complet)_Lovely Complex_Goodbye, in-laws
Couples where at least one of them initially hates the other. Especially long term hatred. No yaoi, but shounen ai is fine.