Kyle Mowitz

Kim Zolciak's in a serious relationship -- her first since splitting from Kroy Biermann -- though it's not without its own drama ... 'cause she's dating the guy whose estranged wife subpoenaed her in their own $100 million divorce proceedings. Here's the deal ... a woman named Jillian Green sent…

Kim Zolciak's fighting to avoid sitting for a deposition in another couple's divorce proceedings -- nothing to do with her own split from Kroy Biermann -- and there's a whole lotta money on the line. The reality TV star has filed a motion to squash a subpoena in Jillian Green and Kyle Mowitz's…