
http://www.mangago.zone/read-manga/mankai_darling/ you probably read it before but it's quiet funny and love triangle cute one tho
Seme loves uke and uke loves someone else and that someone else loves someone else

http://www.mangago.zone/read-manga/bokura_no_mitsudomoe_sensou/
http://www.mangago.zone/read-manga/close_the_last_door/
http://www.mangago.zone/read-manga/okusan_no_mousouteki_nichijou/
http://www.mangago.zone/read-manga/hydra/
http://www.mangago.zone/tag/Love%20triangle/?page=1 There's also this tag if you want to take a look, though it has other stuff besides yaoi.

Yeah, I know what you mean. Hydra is such a long and complicated series, and it's been awhile since I've read it. Plus I'm not even finished reading Rules, but I can at least give my interpretation on Hydra 1+2+3+4's ending, which probably won't be accurate since my memory's fuzzy.
From what I could tell, Hitomi and Ryuu do not end up together even though they both love each other, and I think it was because Ryuu thought he would not be able Hitomi happy. Maybe they get together in a later volume of the series. Hitomi and Taira go out with each other for awhile, but they drift apart and eventually break up. They'd actually loved each other, but both knew that Hitomi would always love Ryuu, and that affected their relationship more than they thought it would. Even though, they break up, they still sometimes get together as sex friends, but that eventually fizzles out too.
If I remember correctly, Rules focuses on Taira's story afterwards.
Is there a yaoi manga that's funny and has a triangle love. (〜 ̄△ ̄)〜 need Hali manga so bored !!!!!!!!