After an 8-year engagement, Christina Aguilera and her long-time fiancé Matthew Rutler are still not ready to tie the knot. “There are no wedding plans at the moment. Christina and Matt are happy the way they are,” the trusted sources told Us Weekly. “They’re one of those couples who don’t need a document to prove their love for each other.” The 41-year-old singer met the 37-year-old guitarist on set of the 2010 film “Burlesque.”