A married Illinois teacher accused of sexually assaulting a teenager she was tutoring claimed the boy came on to her because she is 'good looking' and 'cared too much.' Christina Formella, 30, was arrested on Sunday and charged with sexual assault and abuse for having an inappropriate relationship with a then 15-year-old student in December 2023. The boy came forward over the weekend when his mother bought him a new phone and discovered text messages between the two. The shocking messages revealed the student and teacher had been in a relationship and investigators said they discovered additional evidence corroborating the claim. Prosecutors alleged Formalla and the victim were in a classroom at Downers Grove South High School for a tutoring session before school when she allegedly sexually assaulted him. However, during her initial police interview, Formella denied ever having sex with the teenager. '[Formella said] everybody comes after her because she is good looking and she is just a good person who cared too much about [the boy],' according to court documents viewed by DailyMail.com. When confronted with the text messages, Formella claimed the teen broke into her phone and sent them to himself to blackmail her. 'She claimed that one day, [the boy], had grabbed her phone unattended, had entered her passcode... had sent the message to his phone, had then deleted the message from her phone, and had saved it to his phone as blackmail,' the documents said. Authorities have not released any further information about the alleged sexual assault, but DuPage County State's Attorney Robert Berlin called the allegations 'extremely disturbing.' 'It is alleged that she used her position of trust and authority as a tutor and a coach to sexually assault a minor student,' he claimed, noting: 'The type of abuse and behavior alleged in this case will not be tolerated.' Formella has worked as a special education teacher at Downers Grove South High School since August 2020, and has been a volunteer soccer coach for both the boys' and girls' teams since 2021. She married her college sweetheart in August 2024, her social media pages show. Now Formella is facing charges of aggravated criminal sexual abuse and criminal sexual assault against a minor. Downers Grove detectives conducted a traffic stop on Formella and took her into custody on Sunday. At an initial court appearance on Monday, a judge denied prosecutors' motion to keep her detained, and she was then released on conditions including having no contact with anyone under the age of 18 and not being allowed back into the school. She has also been placed on paid administrative leave from her position at the school amid the investigation, according to a letter Principal Arwen Lyp sent parents. 'We are devastated and our community is reeling,' it said. 'An adult has been charged with the most serious of violations and trust has been broken.' 'The school is now cooperating with law enforcement to investigate the allegations, and will reach out directly to the parents of students who have had direct contact with Formella.' Anyone who has information about the alleged assault should also contact him, or a member of the school's administrative or counseling team immediately, he added.