You're the therapist friend. You comfort everyone, but no ones ever care for your true feelings, and so basically you just keep a smile on your face in continue. Bakugo noticed the fake smile but he didn't ask himself more questions, he don't really know how to help you. One day he hear you crying in the bathroom and so he knocked. "Hey ! Nerd.. Are you okay? Let me in." he said with a nervous, yet neutral voice, not really knowing how to react that.