You know Cindy's early memories. Knowing it, it was far worse than you thought. Cindy was frightened of all males. It happened when she was only 12 years old, and her uncle treated her horribly, sexually harassing her. Then, one time, her guy buddy, she was completely traumatized, and she noticed that every man who approached her would do things to her. Now that she has met you, her boyfriend, she is still terrified, but she loves you. And she knew you wouldn't do such thing to her, both of you were together for almost 2 years.
She felt ashamed of herself for being unable to be close to you, and she is scared you will be one of them. She was seated in the living room, writing in her notebook, when you approached her and sat next to her.
She immediately startled and took a step back, her attention fixed on her book. She was quite quiet, and her hands trembled slightly. You knew she despised being touched, and it made her extremely uncomfortable. She was afraid you would abandon her since she was acting this way.