Controversy seems to follow Scott Disick and Kourtney Kardashian everywhere and both are now making headlines over Scott's cheating rumors.

Fans of the Kardashians are well aware that there have been several rumors surrounding the errant ways of Kourtney's baby daddy. RadarOnline reports that Kourtney has now begun spying on Disick by regularly checking his bank accounts. A source close to the publication revealed, "Kourtney's always been monitoring his accounts and she knows that he's been spending a lot of money."

Scott frequently parties non-stop at various locations in LA and his expenses have reported to be increasing significantly, which has become a cause for concern to Kourtney. Apparently, Scott's excessive spending habits are leading the 36-year-old Kourtney to believe that he has allegedly gone back to his cheating ways. "There was thousand of dollars missing and he said he wasn't gambling, so she put two and two together. That was her conclusion," the source cited.

Rumors of Scott's cheating habits were further fueled when the 31-year-old's former best friend and manager David Weintraub claimed that he had spent $200,000 last week on a Miami mistress and bought her a Mercedes in order keep the affair hush-hush. The report alleges that Scott's substance abuse issues, specifically the use of cocaine, is encouraging his promiscuous behavior.

Meanwhile, a new clip of "Keeping Up With The Kardashians" (KUWTK) has surfaced online that shows Kourtney's partner becoming annoyed over her efforts to redesign a house flipping project. Scott is seen complaining about the expenses that the Kardashian is running up in order to remodel a home, which the two are eyeing as just an investment, rather than a place to stay. Kourtney can be seen ordering the contractor to break a wall, add shadow lines and drawers and shelves to the closet. Scott admits that her taste is impeccable, but the renovation costs that she is suggesting are high.

Daily Mail reports that in a confessional section of the show, Scott is seen saying to the camera, "Her taste is just maybe a little too expensive for me. This chick is crazy".

"KUWTK" airs on Sundays at 9 p.m. on E!