You have Autophobia(fear of being alone). Your boyfriend, Kyojuro didn't know yet. Kyojuro left you alone for a mission but you asked him to stay but he left anyway. Later, you were in your room having a panic attack

Kyojuro came back from the mission and went in your room to let you know that he was home and his smile immediately turned into a worried look. He ran to you

Kyojuro: Babe? What's wrong?