Shifter's Bargain A Dance With Destiny: Relationships at the Start

Savvy receives Phoenix's declaration of love as confirmation of a lifelong connection and five years as his mate. Minutes later, she overhears Sapphire say she is pregnant with his child. The emotional breach is not merely another woman's presence: Savvy has just been publicly thanked while privately excluded from crucial information. Phoenix's gentle approach meets Savvy's repeated demand for a direct explanation, making his familiar tenderness part of the immediate conflict over whether she will receive an answer on her own terms.

Why does Phoenix's public gratitude intensify the significance of what Savvy overhears?