Here's a recent update that comes close to you 1st criteria - http://www.mangago.zone/read-manga/tsuzuki_wa_asa_made/
http://www.mangago.zone/read-manga/negative_kun_to_positive_kun/
http://www.mangago.zone/read-manga/love_x_devil/
There this one bl anime I saw recently that fits your description perfectly (the name is quite lame but the story is good trust me) This Boy Caught a Merman...
That's it... These are the ones I know which doesn't have twisted plot... Or are you OK with them twists?( ^~^ )
Oh and also this!
http://www.mangago.zone/read-manga/kijima_kun/
How can I forget a manga that fits your description so good...
And these are twisted on different scales
http://www.mangago.zone/read-manga/midara_na_hina_wa_haru_o_uru/
http://www.mangago.zone/read-manga/shitteru_yo/
And this if you haven't read
http://www.mangago.zone/read-manga/caste_heaven/
2nd "couple" and a "couple" from an extra, he outwardly shows himself to be very confident but inwardly quite insecure...
And also there's one about a really pitiful seme:
Haru ga kita
Oh and this
http://www.mangago.zone/read-manga/kyoushitsu_no_yugami/
http://www.mangago.zone/read-manga/yugami_hajime/
Real twisted shit, not 'love's at all but... Yeah a super gloomy uke
A yaoi manga where uke thinks that he is unloved, he will never be able to have a lover or really gloomy and anti social but still in the end someone would love him. Something similar to the manga magane to koi???? I hope that's right title hehe. Thank you!!!