"Don't you dare escape like a coward!"
That single phrase means more than just a simple insult to her, for it was part of the way Maine has chosen to live what she calls a miserable life. To reject Leaena's memories, memories of the coward who runs away and escapes, leaving behind and abandoning her and her family to die.
"You want to know who's the real coward?"
Maine couldn't make her escape as her body instinctively stopped, refusing to accept the fact that she was being categorized as the same as the person she cursed.
She looked back and saw the girl she had failed to kill not just once but twice, always finding a way out of her grasp even at the brink of death. The girl Maine wanted to deny herself, as Rozze is the reflection of who Maine once was back in the days when she would look at Leaena with admiration in her eyes.
"It's the person who you call as your Mentor!... Even without knowing her past, her sins, and who she truly is!"
