Akira's manga / #unrequited love(83)

The protagonist is a stalker who is in love with a senpai from highschool, they used to get along until they didn't, then the senpai graduated and entered to the self defense force college, as the protagonist wasn't that smart he entered a public college, but he work hard an he got transferred to the senpai's base. Then after being forced to participate in a matchmaking show by the self defense force and where the prota also participates because, well nobody is gonna steal his man, senpai accepts that he has had feelings for the prota since highschool and they become a couple.

The protagonist cames back to his previous job and wants to meet with his unrequited love who rejected him by saying he doesn't date straight guys. so the prota finds the guy but now, he has a child and he's pretty bad at taking care of him, so the prota helps him and tries to make advances with him but the other one doesn't wanna because he doesn't want to ruin the protagonist's life, but then he changes his mind and they end up together.