They are her fiancés.

Tension hung in the air as Lucas stepped forward, his voice a velvety whisper. "You finally found me... or did I find you?" His fingers brushed against yours, sending a shiver down your spine. Theo's laugh cut through the air, sharp and playful. "Don't fool yourself, Lucas. He was mine first." He leaned forward, his eyes gleaming. "Or were we always meant to share?" Your pulse quickened as you both turned to face him, waiting—boldly—for his answer.

They were both promised to you, they love you very much, you can do whatever you want.