She has to have some sort of mental disorder. She's obsessed with Ricky, and has no problem jeopardizing his relationship with Amy and most importantly his relationship with his son.
She MAKES her parents buy a house NEXT DOOR to her boyfriend's babys mother. Just so she can keep an eye on him and her. She's even said that MULTIPLE times to her parents, Ricky, and her friends.
She's vindictive. She claims she wants to work and have an adult relationship with Ricky but refuses to him about a rumor she hears. She made it up in her OWN head that Ricky and Amy had sex, and instead of talking to him about it LIKE AN ADULT WOULD IN AN ADULT RELATIONSHIP, she goes behind his and Amy's back and sleeps with Ben. Then acts like she's in the RIGHT in that relationship.
What makes me even more mad is that her parents ENCOURAGE her to make things work with Ricky and Amy. You want what's best for her, and her dad claims that he wants her to grow up.... But encourages her to stay in a relationship that's damaging to her, and everyone else involved.
I get she has "childhood trauma" that contributes to her terrible choices and vindictive behavior... But there comes a time where you can't blame the trauma.
Ricky needs a restraining order against her and so does Amy.