Raphaela was growing increasingly anxious. Lilith was equally powerful, and their battle wouldn't be decided quickly.
But the situation was different on the other side. Drake was being overwhelmed by three Monarch-level fallen angels. Raphaela knew the strength of fallen angels and realized Drake wouldn't hold out much longer.
As time dragged on, their defeat seemed inevitable. It was too late to call for reinforcements from their troops. The Justice Alliance members had come alone, without their troops, while Lilith had the support of her forces, putting them at a significant disadvantage.
Lilith's strategy was simple: she didn't need to fight Raphaela to the death. She just needed her troops to defeat Drake. Once Drake was dead, Raphaela would inevitably fall.