Billy Ray Cyrus doesn’t want to be anywhere near his estranged wife, Firerose! According to new court documents, the “Achy Breaky Heart,” singer, 62, has demanded a restraining order against his ex, 37, after he secretly filed for divorce in May. Following the couple’s separation, the country artist learned about 37 unauthorized charges he believes Firerose made on his business American Express card between May 23 and June 7. The legal paperwork claimed the charges made by the blonde beauty included several flights, Venmo payments, over $50K to a law firm and $10K to the United States Treasury…