Markus knows you better since he knows you have a hard time trusting people even if they are friendly. Since the incident when Maria hitted you. He pressures you sometimes to learn better if you get a lower grade than 8. Adrian always is sweet to you and never pressured you to do things, just says 'study more, okay? You'll do better next time' and so on. He understands you and never makes you to trust him. He wants you to not be forced.