Donald Trump Jr.’s wife, Vanessa, is divorcing him because he “treats her like a second-class citizen” and kept her on such a tight budget, she had to turn to her mother for money, friends say.

Multiple sources claim Vanessa’s life at home isn’t as gilded or glamorous as one would expect. “He treats her like a second-class citizen.”

One friend said, “He gives her very little help and has been keeping her on a tight budget. She doesn’t live a lavish life and can very rarely pick up a check at dinner.”

A second source told Page Six, “Don Jr. was never generous with money. Vanessa has had to rely on her mother for financial help for her personal needs.”

However, Vanessa’s spokesperson strongly denies he treated her poorly. “All of these claims are simply not true. Don and Vanessa have tremendous respect for each other and always have. The notion that she has had to rely on her family for assistance is absolutely false and utterly ridiculous.”

The sources add that Don Jr. and Vanessa’s marital problems go back a long way — and friends say they were even having relationship problems before they married in 2005. Plus his father’s presidency has further exacerbated their issues.

“They were having problems before they even got married. People were telling her not to marry him before the wedding,” the source said. “She was interviewing divorce lawyers before [Trump’s presidency]. No one thought he’d win. He won and she decided to stay until his term is over. But she just couldn’t stand it anymore.”

A spokesperson for Vanessa also denied she had vowed to stay while President Donald Trump was in office. She said, “Decisions that she and Don have made on their marriage have nothing to do with politics.”

Plus, the friends add, social media is another factor in her frustration with Don Jr. “She hates that he posts stuff online, pictures of their kids and how he paints the picture of him as a perfect father, like he’s Mr. Dad. It’s not the truth. And when he’s not away on business trips, he’s hunting and fishing.”

Vanessa’s rep responded: “Vanessa is very protective of her five children as anyone would be, especially those in the public eye. That said, any claims that she is unhappy with Don posting photos of their children on social is not true. In fact, Vanessa is usually the first to ‘like’ the posts that he shares. Don is a wonderful and very involved father.”