@kmar123 So my dad is actually addicted to working out. Like, if you google "gym addiction" and look at the symptoms, he fits them all. The only time he's ever intentionally skipped a workout was when he got his finger cut off in a snowblower and spent the night in the hospital getting it stitched back up. Oh, that and when he threw his back out and spent the morning pacing around the house because he couldn't bend over to tie his gym shoes.
He knows he has a problem. He takes a rest day every Tuesday because he plays tennis late on Monday night, but even taking that day off every week took a while to work up to.
His biggest tell is his mood. Aside from his planned rest day once a week, if there's ever a situation where he cannot workout on a planned workout day, his mood is affected for that whole day. He's quiet at dinner, more short with coworkers than usual, seems tired, goes to bed early that night.
Your five days a week might be all fine and dandy, but what if you can't workout on one of those planned days? Do your roommates notice your mood shift?
I don't want to project my own experiences onto your situation with my dad, and on the flip side I've certainly had periods of my life where I was working out 6 days a week for 2+ hours a day but wasn't actually addicted to working out. But to me at least, the big difference between people who do have a gym problem and those that don't are they way they act on days where they can't workout when they typically would.
It seems like this is something that's really bothering you, so maybe take some time to mull the comments over and then go talk to your roommates. If they're your friends, they're probably just worried about you, which is something that a good hangout session with some deep talks can do wonders for.