Yes, she has low self-esteem. What she heard from others was that she was always inconspicuous, always ordinary, and even a little bad.
Yes, he is excellent. She felt him from other people's mouths, actions and eyes. He seemed so dazzling. He made her unable to open her eyes, but she wanted to get closer. She knew it was dangerous and she might not be able to escape.
In this way, her warm shell might be broken. She didn't know what the outcome would be, and she didn't dare to take that step.