No it isn't, and that's according to a court directly superior to Chupp. In a nearly identical situation, with two parties disagreeing on an event only they knew about, the appeals court found actual malice because if the plaintiff was telling the truth, the only rational inference was that the defendant, the only other person who knew the fact in question (which occurred privately face to face between them), logically had to have known the falsity of her statement.
Hence, a prima facie case of actual malice.
Which of them, the plaintiff or defendant, was telling the truth was a question for the jury.
Not Judge Chupp, which is possibly why he hasn't dismissed those counts. Yet. And why he might not. If he is actually aware of precedents from the past few months from the specific court of appeals in Fort Worth that he answers to.