"Katy doesn't think Russell respects her parents' Christian beliefs or her friends," a source tells Us.
Earlier this month, the couple attempted to silence rift rumors with some red-carpet PDA at a Los Angeles charity event. But even that affectionate outing is up for debate.
"In front of the cameras they acted really happy together, but behind the scenes, Russell was miserable," a mole alleges to Hollywood Life. "It was supposed to be an event for meditation, but Russell was anything but peaceful and positive. In fact, he was really rude to one couple who wanted to take a picture of him. Katy was really embarrassed. You could tell she felt uncomfortable."
And their purported personality divide may be growing wider.
“Katy is a bubbly, happy person and Russell is just bringing her down," contends another snitch. "He may be funny on interview shows, but in real life he is not this happy go lucky guy, the kind of guy Katy thought she married. He is just too depressed and negative!"