An insider told British newspaper the Sun, "Kate gathered quite a collection of Pete's ramblings over the two years. He used the lyrics from his song What Katie Did — which was written about a totally different Kate — to pull her in the first place. It continued throughout the relationship. She has piles of love letters, poems, songs and paintings. Now Kate has decided to cleanse herself of him by burning the lot. It all stinks a bit of a high school break-up."

Moss, who changed the locks to her London home post-break up, has been staying with her friend, hairdresser James Brown, in order to avoid seeing Doherty. It turns out the couple's problems were more widespread than just Pete's infidelity.

The source said, "They had already had a huge row over money before Pete [cheated]. Kate claimed he had helped himself to a load of cash she had stashed in her flat. She told friends she was angry he hadn't asked her first. It had made her question whether she could trust him once again. They had a fall-out and Pete's reaction confirmed in Kate's mind it was time to let go."