Early 2000's nickelodeon tv show in the UK?

i can't remember the name of it, i can only remember it vaguely but it was a teenage girl and she had a best friend but he was a boy, but he always liked her, i think she was quite rebellious due to her parents being broken up, i don't know where her mother was, but she lived with her dad, and her dad's girlfriend, and always resented her dads girlfriend because it wasn't her mum, her dad and his girlfriend had a child also, towards the end of the series i know this doesnt really help, but could anyone tell me what it was called?!