Jessica Simpson's 'irreplaceable' lover

Jessica Simpson has fallen in love with her American football player boyfriend Tony Romo. Dallas Cowboys quarterback Tony Romo (L) and actress Jessica Simpson (R) watch during the final minutes of the Los Angeles Lakers game against the Dallas Mavericks in the second half of the game at the American Airlines Center in Dallas, Texas, USA, 18 March 2008. EPA/LARRY W. SMITH

Dallas Cowboys quarterback Tony Romo (L) and actress Jessica Simpson (R) watch during the final minutes of the Los Angeles Lakers game against the Dallas Mavericks in the second half of the game at the American Airlines Center in Dallas, Texas, USA, 18 March 2008. EPA/LARRY W. SMITHThe singer-turned-actress admits she can't live without the "irreplaceable" Dallas Cowboys player.She gushed: "I'm in love, yeah. Big time. It's only been four months. I can't believe it. It feels like forever. I love this guy."The 27-year-old beauty also revealed she has written a song for Tony, entitled 'Back In My Old Boots', as a thank you for building her confidence back up.She told America's Glamour magazine: "Tony reintroduced me to myself. I thought that I had to be deeper, more profound and more artsy. You change with the guys you date. I thought I had to be more intellectual. Come on - just be yourself! "Tony taught me that because he loves me as me. He made me feel comfortable again."Meanwhile, it has been claimed Jessica has been calling Tony her "future husband", and plans to marry him in the near future.(C) BANG Media International