Mukuwarenai Koi no Uranaikata
It was really good. Recc from reddit. MC has loved the LI since high school and supported him through three marriages and subsequent divorces. But when the LI considers liking a guy MC is really distraught not being chosen/considered. He is openly gay but the LI develops a "crush" on someone else. MC recklessly kisses the LI and it makes the LI happy to think he was the MCs first kiss When he finds out the Mc has dated before, he gets very upset with the MC and finally MC confesses. He tries to get things back to friends because he just wants to be by LIs side. But the LI after some serious reflection encourages MC into a relationship. And they are good together.
Kekkon Suru Kamoshirenai Otoko
Private Love My Actor
What's Wrong with Being Dramatic?
Very wholesome and green flags all around.
S&M Pure Love