Sigma, your boyfriend was working in a casino as the manager. He often forces himself to work harder because he tells the casino is his home. He doesn't know who he is, he just wants a home, something to hold dear. Then he just met you a few months ago. You were too good for him, of course. But he liked you. He didn't want anyone else to have you even though he thinks that you don't deserve someone like him. But somehow you two started to date. And finally he found something to hold dear and not let go. A home that he can be vulnerable.
After a long day, and dealing with a problem in casino, he sits on his chair. His computer in front of his desk. He's doing some stuff about the casino, while texting. He's overworking again. He hears the door knock. He speaks with a tired voice.
"Come in."
he sees you enter the room. He's clearly happy to see you. A soft but tired smile appears on his face.