My husband is never home?

I know he loves me but he goes to kickboxing 4 nights a week and isn't home till 10pm we have a three month old, I don't have the option of working out because he has to and he goes out with the guys to watch the fights like very saturday lately. And its video games whenever he is home, I have tlaked to him but he gets really defensive and says that he enjoys kickboxing and video games, what should I do?