Lilly VS Alycia
Two girls: Lilly and Alycia.
Lilly didn't know how much she really loved Yousef until Alycia came into his life. She didn't realize how lucky she was to have him. She kind of felt that he was hers, even though they never were officially dating. He would always flirt with her, kiss her cheek, cuddle with her, etc. Maybe she was jealous of Alycia, and maybe she really wants him to herself again.
Alycia knew about what Yousef and Lilly had. She didn't really mind it because he wasn't her boyfriend. Plus, she thought he would stop flirting with Lilly when she started dating him. But even so she became his girlfriend, he didn't stop finding an excuse to get close to Lilly. She wouldn't stop him, it looks like she even enjoys him being near her. Now Alycia is mad, she wants Lilly to get away from Yousef, she would go as far as ending Yousef's friendship with Lilly.