Remus's eyes went red with heat when he heard his men call out for him to escape on his own.
As their general, and even more their friend, how could he?
Remus had been with them for years and even slept with many.
So how could he leave them to die just like that while he made a break for it for himself?
His legs refused to follow that command.
Not to mention, as the commander and chief strategist of the defense, Remus blamed himself for much of the predicament he was in.
Especially his blunder to adopt an attacking formation, which worked to deplete his already smaller force much faster.
By all accounts, Remus should have followed the other ship's suit.
But the usually bright general had not.
As for the exact reason why, well, perhaps it could never be definitely known.
It could be simply that this option never crossed his mind.
Or that he did not have enough time on his hands.