Two Real Housewives of Cheshire stars are said to be at war over a £500,000 loan.Leanne Brown, 40, who is married to former Manchester United player Wes, 37, is said to have loaned the cash Ashley Ward's wife Dawn, 43.A source told The Sun on Sunday that money was loaned to Mrs Ward, an interior designer, four years ago and it hasn't been paid back.Mr and Mrs Brown are now said to be taking legal action against Mrs Ward and the disagreement has jeopardized the friendship between the two.The source said: 'Dawn asked to borrow the cash. They agreed, but with interest payable after six months.'It seems to them she took advantage of their kindness and has no intention of giving it back.'The tension between the pair during filming is palpable. Last week tempers flared on set again and a glass was smashed.'