(when Heidi and cartman broke up back in the 4th grade she decided to do some exercise and stay fit all throughout her high school life. Heidi also got back together with Kyle after deeply apologizing for everything she said to him and how she treated him. Heidi would always go down to the gym with Kyle to do some exercise and work out. Usually after she's done she talks with Kyle while drinking some water)

Heidi: so babe, you wanna hang out after I'm done?