Dog Style, Hidamari ga Kikoeru, King & Prince (sort of), Kono Ore ga Omae nanka Suki na Wakenai (sort of; he doesn't hide it, but if he didn't say anything about it we'd likely have no clue since he's so apathetic), Michiru Heya (but he eventually can't hide it anymore), Manazashi no Hayagane, Nirameba Koi (sort of; it's so obvious that it's not obvious), No. 6, Nise x Koi Boyfriend (the last story), Soredemo Yasashii Koi wo Suru, Rin!, Ookami Shounen to Hamu no Hito, Renai Kidou (last two stories), Renai Ruby no Tadashii Furikata (second story), Sakoku Renai, Sono Koi ni wa Wake ga Aru, Sono Yubi dake ga Shitteiru, Sweet Bitter Candy, Taka ga Koi Daru, Tight-rope, Totally Captivated, Usagi Otoko Tora Otoko, Urahara to Dilemma (can't recall which chapter), Bikiyou na Silent. I'll let you know if I think of anything else.
A yaoi where the uke or seme can hide their love, no matter how strong it is, to the point that if the author didn't point it out the reader wouldn't even know what is going on? Or just good at hiding it.
I have been reading mangas where the uke tries to hide his love, but it's so obvious ( ̄∇ ̄")
Thanks a lot guys!
PS: Happy ending, please