Could Horrace have been with Chloe during his absence?

As this thought hit her, a shadow crossed Olivia's features, but before she could speak, her mother asked shakily, "That woman... is she a Gray?"

Olivia snapped back to attention. "Mom, you know her?"

"She's really a Gray?" Josephine quickly glanced at her husband, Brandon Foster, who seemed distracted, his gaze unfocused between Horrace and Chloe.

"Yes, she's Dr. Gray, currently doing her rotation at our ...