About 3 hours a night since all this began 2 months ago. He's always put in hours here and there, but it's an every night thing these days. It's his escape - from reality, from me, from his responsibiities, I guess.
To add: he honestly doesn't appear up to anything else, just playing that darn XBox. The kids pop in and out of there - and of course, I do too at times. Nothing ever seems suspicious. He's never on the computer or on his phone...so, I can only believe he truly is playing XBox all that time. Crazy.
