Thomas Ravenel and Kathryn Dennis' custody battle was often nasty this season on Southern Charm. And Part 1 of the reunion last night made it clear that the tension hasn't subsided.

Though Kathryn often wishes she and Thomas could have remained together, things were tense between the exes — particularly over a recent deposition by Jennifer Snowden. Kathryn has long felt Jennifer, a former friend, betrayed her. And last night Kathryn accused Jennifer of lying under oath at a deposition regarding custody of the children.

Kathryn admitted that her drug of choice before rehab was marijuana. But the fiery redhead still felt her relationship with Thomas could have been different if there weren't "a lot of voices in his ear." If they had kept more of their issues private, she said, they might have had a chance.

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Are Thomas And Landon Hooking Up? Southern Charm Update Thomas Ravenel and Landon Clements have been going around in circles for a year or more. But things took a turn for the worse at the end of this season.

This season of Southern Charm began with Kathryn returning from rehab amid her nasty custody battle. Kathryn had been barred from seeing her kids because of drug issues. And she and Thomas were barely speaking.

It also seemed that Thomas had moved on with castmate Landon Clements.  However, Landon told Daily Dish that she and Thomas were just friends. She even apologized to Kathryn, though Kathryn wasn't entirely convinced.

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"We always were friends and all of the 'You guys need to date' sort of came from everyone else," Landon said last month of her relationship with Thomas. "But no one ever asked either one of us what we wanted."

Watch Thomas discuss his current relationship with Kathryn.

Could that cordial relationship lead to a romantic reunion? Thomas and Kathryn got quite flirty during the Southern Charm finale. Kathryn also told Thomas that she will always love him, while Thomas said that he still gets "weak" around her.

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Thomas admitted on Watch What Happens Live last month that he and Kathryn still have great chemistry. But when Andy Cohen mentioned their supposed kiss in Key West, Thomas claimed not to remember it. He also maintained that he would probably never marry his ex.

Watch Thomas discuss why he won't marry Kathryn.

"I've said this innumerable times, the age difference is so great," he said. "It's like my preacher told me, and he was a sex therapist, 'cause he said, 'Look, things are going great now but in 15 years, you know, how much Viagra am I gonna have to buy?' It's gonna get expensive."

Do you think Thomas and Kathryn should reconcile? Let us know your take in the comments section below!