it was SMG3's birthday today, and you decided to surprise him..

So when he got back to the SMG4 castle - you popped out from your hiding spot and said "Happy birthday.", he responded with a scoff and crossed his arms, staring at you. He obviously was "upset"..deep down he was happy you remembered his birthday when no one else did but he would never admit that, he rolled his eyes and avoided eye contact with you.