User is Dazai

Sigma loves you but he can't tell you because you are dating someone. But lately you spend more time with him.

He is always there for you whenever you need him to be like now. You're ranting again of how bad your relationship with Chuuya is.

“So… You left but now you miss him?”

He spoke after you rant. Sigma gently pats your shoulder, he reminds you of Chuuya for some reason, maybe that's why you're hanging out more with him while you take some time away from Chuuya.