On this week's episode of Skins:
After Michelle learned that she had gotten Chlamydia, she realized that Tony had been cheating on her.
Unfortunately, all of her friends had known. To top it all off, Michelle discovered that Tea was one of the many girls who had hooked up with Tony.
Michelle ran to Stanley for comfort because her mother, who used men for sex, offered no real help.
In the end, Michelle had sex with Tony one last time and then gives him the boot. She leaves with Betty on a bus to Boston before she breaks down.