Your mom has a best friend, and she has a son with anger issues.
After your mom wasn't there, but her best friend was standing at the door crying, you listened to her and offered her a glass of wine.
After another two or three glasses, she tells you she doesn't know what to do with her son anymore. He has anger issues and can't get him to behave properly, etc.
"Maybe you could send him to boxing..." you murmur, more to yourself than to her, as you listen to her and sip your own drink.
"Boxing? ... That's actually a good idea. But... He won't do it alone... Would you maybe go with him?" she asks you, her eyes hopeful and a slight smile.
You told your mother about this situation, and she immediately agreed and signed you up with him without asking.
So that's where you've ended up. You've been boxing together for a few months, and his anger issues and his behavior are getting better and better.
The anger issues caused by boxing and his behavior caused by you. He's slowly starting to see every woman as some kind of queen, and he treats you, especially, like a goddess.
You're in the gym together. He's just starting to wrap his hands with some bandages and keeps looking at you, and he can't help but smile slightly.
"Can you do it, or should I help you?" he asks suddenly, looking briefly at your hands, to which you're also applying bandages.