She might be hoping for a quiet and intimate affair when she marries NKOTB singer Donnie Wahlberg, but some family drama could be set to ruin the festivities for Jenny McCarthy.

Jenny McCarthy & Donnie Wahlberg Getting Married In Low-Key Affair?

According to Radar Online on July 24, she and her equally famous cousin, Tammy actress Melissa McCarthy, have been feuding for some time-and things have since exploded after Melissa initially wasn't invited to the wedding.

"The cousins were close at one time, but they've grown distant over the past few years," a source said.

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The feud has since reportedly gotten more intense, as Melissa revealed on Howard Stern's radio show weeks ago that she wouldn't be attending her cousin's nuptials because they were "on opposite worlds now," referring to the two living on opposite coasts.

However, Jenny appeared on the talk show just a few weeks after and said Melissa would be invited-though that reportedly wasn't part of her initial plan.

"Before Howard put Jenny on the spot, Jenny had no desire to invite Melissa to her wedding," a source said. "Jenny feels she helped Melissa get a leg up in the business. But now that Melissa's career is skyrocketing, Jenny feels [Melissa] doesn't have time for her."

Though she's reportedly having insane drama with her cousin though, McCarthy didn't appear to let it bother her when she took Wahlberg to go dress shopping with her at Bergdorf Goodman July 22.

"Jenny was trying on a variety of dresses including Vera Wang, Isabelle Armstrong and Naeem Khan," a source told Us Weekly.

And though McCarthy reportedly left empty-handed, the nuptials are due to happen sooner rather than later.