*Less than two months after Kim Kardashian’s wedding extravaganza, her marriage is reportedly headed down the toilet.

The National Enquirer is reporting that the 30-year-old reality star and her husband Kris Humphries have fought bitterly over her wild spending and other things – and one recent blowup ended with Kim storming out of the $7,000-a-night New York hotel suite where they live.

A family insider claims their battles have gotten so bad that Kris, 26, is considering ending the marriage, which began with a spectacular Aug. 20 wedding.

“Kris thought he could handle living with his every move followed by a reality TV camera crew – but now he is having second thoughts,” explained the insider. “He believed Kim’s hunger for the spotlight would tail off after the wedding, but it’s just gotten worse.

“He thinks she is more obsessed with being famous than having a happy marriage.”

The pro basketball player is starting to believe “he is nothing more than a prop for Kim’s photo ops,” noted the source.

When he complained to his wife about it after one event, she exploded, insisting it was all in his head.

“After she realized that Kris wasn’t going to back down, she ran out of the hotel in tears,” said the insider. “She didn’t return until several hours later, but then pretended like nothing had happened.”

Former New Jersey Nets power forward Kris – currently unemployed due to the NBA lockout – may be forced to play overseas. But Kim is reportedly insisting that he play for a major city team, and not in some “third-world country,” or she won’t join him, divulged a pal. “She constantly says things like, ‘At least one person in this family is bringing in a paycheck.’”

Added the insider: “It sickens Kris that Kim will spend tens of thousands of dollars a week on her appearance, and refuses to wear the same thing twice. It’s things like this that make him want out of the marriage.

“Kris is going to give the relationship a bit more time – but if things don’t change, he’s out!”