An insider told the Mirror's 3AM Girls, "Pete was still phoning up last weekend and in the end it was too much even for Kate. She thought she had made things clear - that he should never get in touch with her again, under any circumstances. But he failed to get the message so she's taken drastic action. It's a pain for her but she's more adamant than ever about making a clean break."

When Kate initially heard about Pete's infidelity, she had his things removed from her home and had the locks changed. Said the source, "She thought it wasn't necessary to change her phone numbers, but she's been proved wrong."

It's looking more and more like this break up will be the on-again off-again couple's last. The snitch said, "Kate is determined to wipe the slate clean and that means never speaking to him again. Her friends are behind her decision and will support her every inch of the way…She's spending a lot of time on her own getting her head around things. It's been difficult but she knows in her heart she's made the right decision."