(CNN) - A Palin family spokeswoman Monday is continuing to push back against recent claims from Levi Johnston, saying the former fiancé of Bristol Palin told an outright "lie" when he said the two were allowed to live together.
"Levi has never lived under the same roof as Bristol or any of the Palins," Palin spokeswoman Meghan Stapleton told CNN.
In an interview that aired in full Monday on the Tyra Banks Show, Johnston said he moved in to the Palin household shortly before the birth of son Tripp last December.
"I just wanted to be there for her when she had the baby," Johnston said, adding the two were allowed to share a room.
"Do you really think the governor and Todd would have allowed that," Stapleton said in an e-mail.
In a statement released late last Friday, Stapelton was also sharply critical of Johnston for appearing on the show.
"We're disappointed that Levi and his family, in a quest for fame, attention, and fortune, are engaging in flat-out lies, gross exaggeration, and even distortion of their relationship," Stapleton said. "It is unfortunate that Levi finds it more appealing to exploit his previous relationship with Bristol than to contribute to the well-being of the child."
But in the interview with Tyra Banks, Johnston said was driven to "break his silence" after reading several news reports that were "not true."
"I have seen a lot of stuff, read a lot of things in the newspapers and news and it's time we get our story out there," he said. "I have seen a lot of stuff saying I've done steroids and drugs and cheated on Bristol and that kind of thing, and it's not true."
Johnston also described a currently chilly relationship with the Palins, saying the Alaska governor "doesn't want me around, I don't think." Johnston, and his mother Sherry, said they may go to court in an effort to be granted 50 percent custody of the child.
Johnston and Bristol Palin were thrust into the spotlight last September when Sarah Palin was chosen to be the Republican vice presidential candidate. During the GOP's national convention in Minneapolis, Palin revealed that Bristol, then 17 years old, was pregnant with Johnston's baby and the two had plans to marry.
The Alaska governor later indicated the wedding would occur this summer. But news surfaced last month the two had split.