Jordon Hudson found ways to keep herself occupied while Bill Belichick struggled through his UNC debut ... even at one point fielding a phone call during the Tar Heels' disaster.
Check out some photos of Belichick's 24-year-old girlfriend on Monday ... while she had some sweet seats for her man's big night -- she was anything but thrilled to watch North Carolina get drubbed by TCU.
She seemed nervous throughout -- and appeared to phone a friend to get her mind away from the action on the field.