Reports reveal that "This Is Us" stars Mandy Moore and Milo Ventimiglia are not on good terms. It is said that despite their touching relationship on the show, they are the exact opposite in real life.

According to reports, the two have a cold behavior toward each other. Their constant off-screen bickering frustrates the cast and crew of the show.

"This happened with Milo on every show he has ever been on," a source said. "From Gilmore Girls to Heroes -- the show becomes successful, then Milo gets self-conscious, and starts withdrawing from the crew, the producers and fellow actors on the show!"

It is said that the actor's attitude does not show professionalism. Being an introvert, he cannot control himself and is often melancholic and not cheerful. Instead of bonding with the cast, he walks around with his ear buds on all day or he will be occupied reading a book.

Because of this attitude, Mandy is not happy to work with him. Mandy loves her job and she feels that the roller coaster with Milo is already too much. The actor, who likes privacy, makes it hard for the cast and crew. Filming for the series is reportedly a hassle for everyone because of Milo.

But Mandy is the most affected since she shoots most of the scenes with him. The rumor adds that Mandy is stressed due to the "emotional scenes on the camera and the unpredictability of Milo's disposition when they are not shooting."

However, Gossip Cop debunks the report saying that the two stars are not feuding on the set of "This Is Us." They asked a source involved in the production of the show who clarified that the news is fake. The source also says that the cast and crew of the show are like family, and there is no tension between the stars. One proof is the behind-the-scenes video that Mandy shared on social media that shows she is having a good time with co-star Milo.