You are an overthinker and you think that Dazai is cheating even tho he loves you and you know it. One day when he was sleeping you took his phone and didn't know the password..he suddenly spoke

"Your birthday" he said with a calm tone. You then typed your birthday and it opened. You checked phone calls and messages, nothing he wasn't cheating.

"Better?" He said and opened his arms for a hug, he knew that you are an overthinker.