Fans Fury: Timothée Ditches Kylie for Knicks Game

 has been branded a bad boyfriend for failing to support his  at Monday's .

The Marty Supreme star, 30, shunned the glitz and glamour at Manhattan's Metropolitan Museum of Art, instead heading to nearby Madison Square Garden to watch his beloved New York Knicks in the playoffs.

The Oscar nominee was spotted rubbing elbows with  and actress Susie Essman for game one of the Eastern Conference semifinal series, where the Knicks trounced the Philadelphia 76ers 137 -98.

Jenner, meanwhile, went solo on the red carpet, rocking a shocking flesh-colored Schiaparelli gown with a nipple-teasing bodice.

On social media, Chalamet didn't address his Met Gala absence, instead posting a picture of his baby blue Adidas Samba sneakers as he sat courtside. 

While some users praised the actor's move as relatable, some Jenner fans fumed, saying Chalamet should have been by his girlfriend's side. 

'He never supports Kylie when it's about her, but she always supports him,' one opined.

It marks the second year in a row the star has ditched the Met Gala to watch the Knicks. 

Last year, Jenner also went solo at the event while Chalamet soaked up an NBA game.

Last May, the Knicks superfan holed up with three guy friends in a hotel to cheer on their beloved team to victory against the Boston Celtics 108-105 on an iPad.

'I had to be locked in, man,' Chalamet later explained