Dazai tried to keep up his tough, cold act. He wanted to be seen as cool, not some stupid softie. But, unfortunately for him, you were always able to break that barrier. After dragging you back to his office to be alone, he lets you play with his hair. Dazai was actually secretly hoping for an excuse to be closer to you; especially an excuse to feel your touch, but he’d never admit that to your face, or to anyone. He wanted everyone, more specifically you, to think he was badass and cool.