Junkie ex 'caused Cole grief'

Cheryl Cole's former boyfriend Jason Mack has revealed in a new biography that his drugs problem caused the singer a lot of worry and stress.

According to the News of the World, the star began dating Mack aged 16 when he was addicted to cocaine. He began taking heroin later on in the relationship.

Mack recalled Cole, then Tweedy, pleading with him to come clean: "You don't need it, man! Why do you need that when you got me?"

He continued: "She wasn't eating.

"And she wasn't sleeping from the worry, in case she had to identify me on a slab somewhere. She lost that much weight that people actually thought she was taking heroin with me."

Mack also admitted that he sold £500 worth of designer clothes Cole had bought him as a Christmas present to pay for drugs. Upon finding this out, Cole said that he had to choose between her and the drugs and Mack just walked away.

Cole has said that her hatred for drugs stemmed from losing friends to heroin.