Chad has already had a fight with the MC, if he does it again he'll be expelled so he is unlikely to risk it. If he is indeed gay, it's his reputation that he holds dear not love/jealousy for Sage per se.
- His rage at MC has indeed been about his rep as
TheFinder says. Getting shoved in public in the cafe and whatever is on the photos. He did
not come after the MC for making out with Sage at the DIK party (if you took the Sage path that is - plenty saw it even before the cockblock).
- If you are on the Sage path and spoke up for Chad, I feel there will be a man-to-man
talk with him at some point in Ch.4 where an understanding will be reached.
- This talk may even involve the MC helping him to come out of the closet and being comfortable with himself.
- If so, don't rule out Chad becoming a jock pariah (like Troy) in Season 2 - especially if they don't win whatever the jocks are roiding up for - and becoming a "free-agent." I feel Dawe is being set up as the main jock antagonist rather than Chad.
All theory/speculation of course.