"Stop me from bringing her back..." He hissed. "Who is that? Like I'm supposed to know who that is."

Frankly that's something this Strange had known better. He didn't want to break... his own timeline entirely - at least that wasn't the intention.

"Yes, but - you're breaking a key pillar of Time Itself, and it's causing... a degrading of it. It's affecting this world, and others around it. In the end you won't get anything you want - and you'll be alone." Stephen would try to reason with him, first. He wouldn't put his shields down entirely. "Didn't the Ancient One warn us about a fixed point?"
He heard hissing and his instincts to hiss back had to be contained.

"He's not here anymore..."
So. Different timeline entirely.