The attorney representing Mario Williams’ former fiancée asked a Houston judge Friday to dismiss Williams’ lawsuit seeking the return of a 10.04-carat engagement ring and to instruct Harris County prospectors to investigate Williams for perjury. A hearing is scheduled for next Friday before state District Judge Larry Weiman to hear attorney Anthony Buzbee’s most recent challenge to Williams, the former Texans defensive lineman who filed suit earlier this month against Erin Marzouki of Houston. Buzbee’s new petition is accompanied by another round of text messages between the estranged couple and by the attorney’s assertion Williams has committed perjury in his comments about Marzouki. “Despite his fame and wealth, this court should not allow Williams to misuse the court system, or to avoid the ramifications of his conduct,” Buzbee wrote. “Williams is not above the law. He undeniably lied under oath.” Williams, who now plays for the Buffalo Bills, said in his lawsuit filed in early May that Marzouki “unilaterally terminated” the engagement on Jan. 21, 2013, and refused his request to return the diamond engagement ring valued at $785,000. Buzbee, however, countered that Williams broke the engagement and made other false statements about Marzouki in the lawsuit. In a motion filed Friday, Buzbee asked the court dismiss the lawsuit and award court costs and legal fees to Marzouki. Failing that, he said Williams should be required to remove false statements from the lawsuit and refile it if he chooses. At any rate, Buzbee wrote, Williams’ comments about Marzouki in the suit should be forwarded to the district attorney’s office to determine whether the player should be prosecuted for perjury. Weiman last week ordered the parties to meet with a mediator in an effort to settle the case, but no settlement resulted from what Buzbee described as a three-hour meeting. He also disclosed a series of text message from Williams to Marzouki that he said described the player as emotionally unstable and unable or unwilling to decide whether he wanted to be married or single.