Credit: Scott Gries/ MTV/ PictureGroup

Teen Mom star Maci Bookout is no cheater.

In the new issue of Us Weekly, Bookout, 19, slams the claims of Ryan Edwards, her ex and father to her son Bentley, 23 months; Edwards, 22, recently told a tabloid that during their relationship, Bookout cheated on him with Kyle King, her current beau.

PHOTOS: Shocking cheating scandals

"He can say what he wants," Bookout tells Us of the accusation. "I'm not going to pay attention to things that aren't true."

Also untrue? Another report claiming she dumped King, 22, in order to reunite with Edwards. To the contrary, she and King are "really good," she tells Us -- and she and Bentley have permanently relocated to his hometown of Nashville, Tenn. to stay close.

"It feels right," she says of the move. "[Kyle and I] work because, before anything, we're best friends."

As for Bentley's dad, despite his accusations, things aren't all bad. After Edwards threatened to sue for custody of Bentley, arrangements are now "under control," Bookout says.

Just as importantly, "we've learned ways to talk to each other without being so mean," the Tennessee native tells Us.

Read more of our exclusive sit-down with Maci -- her decision to stay in Nashville with Kyle, Bentley's latest milestones and potential wedding plans -- pick up the new Us Weekly, out now.