Look at the drama tag haha, but I can recommend some as well
Voice of Love
I Like You (just beware of the second couple.. ugh I’m getting goosebumps)
Can’t Take My Eyes off You
A Guy Like You
Akai Ito No Shikkou Yuuyo
There are some little misunderstandings and most of them are fluff! (▰˘◡˘▰)
technically a lot of yaoi depends on misunderstandings LOL but here are some:
http://www.mangago.me/read-manga/moudoku_sugar_syrup/
http://www.mangago.me/read-manga/kyou_kara_omega_ni_narimashita/ (entirely FRUSTRATING)
http://www.mangago.me/read-manga/hatsukoi_encounter/?yGcC (a bit frustrating but cute and funny)
http://www.mangago.me/read-manga/nomi_shiba/ (frustrating but cute)
http://www.mangago.me/read-manga/see_you_later_mermaid/ (it's beautiful but their misunderstanding is giving me mixed feelings)
http://www.mangago.me/read-manga/ashita_wa_ieru_kana/ (cant remember but i kinda tagged it as frustrating)
http://www.mangago.me/read-manga/kanawanu_koi_no_musubikata/ (misunderstanding causes me to cry lol)
any yaoi manga with the main characters having misunderstandings with each other? thanks (≧∀≦)