She was worried that Antonin already ordered him killed. There would only be one way to know for certain. She would have to go to him because Antonin wasn't going to tell her the truth. And, if he hadn't yet had Augustus killed, she didn't want to give him any ideas. Mentioning Augustus at all could destroy the fragile peace they'd created in their marriage since her return. Even if she tried, she knew she wouldn't be able to convince Antonin that she had no interest in ever opening the door to a future with Augustus again.