"This was a huge step for Justin. His 29-year-old model wife was rooting for him in the stands at the New Jersey stadium – but according to our source, the fallout has left her trying to help Justin weather yet another emotional storm. That's a big part of the reason he's stopped touring or doing much in public at all," said the source. "It's been a huge weight on Hailey to help him. She put up with his tantrums and mood swings, and he really did seem to have a handle on it."