So much can change in a year. Last August, Ellen DeGeneres and Portia de Rossi headed to Britain for a fun-filled getaway ahead of their 11th wedding anniversary. Then, on their special day, Aug. 16, the comedian took to Instagram to gush about her wife, sharing a black-and-white throwback photo from their wedding day along with the message, “Happy anniversary, Portia. 11 years. My favorite number with my favorite person.”
But now friends fear the stars won’t make it to their 12th anniversary later this summer. “Ellen and Portia have been fighting nonstop, and it’s more than just a rough patch — some think they’re headed for a divorce,” says a source, adding that friction between the stars, who’ve been a couple for nearly 17 years, has reached a new…