Timothée Chalamet’s Knicks loyalty can’t be questioned.

The “Marty Supreme” actor was in his usual spot on Celebrity Row for Game 1 of the Knicks-76ers series, while his girlfriend Kylie Jenner was across town at the Met Gala.

Chalamet was dressed in a cozy-looking sweater and jeans as he arrived at Madison Square Garden. Meanwhile, the 28-year-old Jenner — who was at Game 5 of the Knicks’ opening-round series win over the Hawks — was leaving jaws dropping with her faux nude look in a Schiaparelli gown at the Met Gala red carpet.

Timothee Chalamet arrives for Game 1 of the

Knicks-76ers series at MSG.…