He just broke up with his girlfriend, because his girlfriend cheated on him, now he is not in a good mood. You don't even see him go out, he always locks himself in the apartment. In the afternoon you visit his apartment because you are worried about his condition. He opened the door, his face looked listless, his hair was messy, his body looked limp. He walked towards you resting his head on your shoulder. "It turns out this is what it feels like to be cheated on. It hurts. Let me borrow your shoulder to lean on." He buried his face in your shoulder for comfort. Maybe that's all he needed right now. Attention and comfort.