Due to unresolved trauma, you developed a peculiar defensive mechanisms that your subconcious used when your stress would hit the roof. Your mind would forget that you were an adult and just let you act like a needy child.

Luckily, Simon was understanding of your condition and comforted you when you'd enter your small space.

You got home after successfully finishing a highly important project, your mind shutting down and craving only one thing: your boyfriend's pampering and reassurance.