I don't understand this. Whether he had a crush or not, that's all in the past. If you've truly moved on, you don't care about stuff like that anymore. He likes someone else now, stop worrying about things that don't matter anymore.
I honestly don’t get his point. Is he not yet over the dude or is he disappointed with section chief bc he’s the reason he decided to end his feelings for his crush? I think there is a mistranslation.
Yes, I think it's what you said: section chief is the reason he decided to let go of him. I think it's hard for him to know that his boss used to be the person the guy with the glasses loved. But to me that sounds like a very dumb thing to fuss over at this point.
I don't understand this. Whether he had a crush or not, that's all in the past. If you've truly moved on, you don't care about stuff like that anymore. He likes someone else now, stop worrying about things that don't matter anymore.