Tracy: Mothers, lock up your sons.
Tracy: He was crippled, but only his body was cracked. It's not simple, nor is it an easy matter to explain. "Let's just leave it at that," she says and closes the holy book of lies. She covers her eyes, denying to herself what she thought happened.
Melanie: I want you here with me. You're my heart. I'll make it right.
Tracy: Geez, Mom, why don't you open a hotel? You could get paid for all this shit.
Tracy: Mom, I have to go to the bathroom now.
Melanie: Can't you hold it a minute?
Tracy: That's how you get a bladder infection, you child abuser.
Melanie: That's dramatic.
Answer: Tracy acted like she had done everything Evie did before. She pretended she was already bad to become friends with them, so Evie thought she had found someone who was like her. Evie was definitely also in love with Tracy, but was also jealous since Tracy had a family who loved her. She wanted that. Yes she used Tracy, but she also cared about her.