Rumor: Fantasia’s Baby Daddy Wants That Old Thing Back . . . His Estranged Wife

If you didn’t already have your wig flying at half mast from your bedpost this should do it:

Fantasia Barrino just had a baby with boyfriend Antwaun Cook, but RadarOnline.com has exclusively learned the father is having second thoughts and is actively pursuing his estranged wife, Paula Cook.

According to a family insider [Teeny? -- Fresh], Antwaun regrets giving up on Paula and their two children and while Paula is very hurt by what he did to their family, she’s not exactly staying away from him either.

“Paula and Antwaun both ended up at Club RE:Public in Charlotte over the weekend and things got a little cozy between the two,” the source said.

“I don’t know where Fantasia was, but she definitely wasn’t in the club where they were!”

The source continued by saying that while Paula was receptive, she was still a little gun-shy with all the PDA.

“Antwaun was shoving his tongue down her throat and she kept having to push him away without trying to make a scene,” the source explained.

“He told Paula that she belongs to him because she’s still his wife!”

Fantasia and Antwaun first began dating while he was still married to Paula in early 2010, and after Paula filed a homewrecking court claim the former American Idol star tried to kill herself.

“What Fantasia doesn’t know is that through all of this, Paula hasn’t changed the locks on the house she once shared with Antwaun,” the source revealed.

FANTASIA AT THE 2011 NEW ORLEANS JAZZ & HERITAGE FESTIVAL

“And Antwaun still has keys, so you can put two and two together.”

The source goes on to tell RadarOnline.com that Paula is a very beautiful woman and Antwaun has always been really attracted to her.

“Antwaun has lost interest in Fantasia,” the insider said. “He was even egging people on to take pictures of him and Paula together…he didn’t care who knew.”