They’ve only been a couple for a few weeks, but there’s already big trouble for PARIS HILTON and “Desperate Housewives” hottie JOSH HENDERSON. Paris was standing on a couch while people shouted: “You’re hot,” and “I love you!” Paris lapped it up like a Labrador slurping water on a hot day, but Josh told her to sit down. A PO’d Paris turned on him, yelling: “This is what I do! This is what people expect me to do! Let me do what I want, Josh!” There was a bitter chill between them for the rest of the night.