Jennifer Aniston‘s summer of love maybe over. Filming has wrapped on her new movie, “The Bounty,” and her co-star, Gerard Butler, has flown out of New York with his beloved pug of war, Lolita. Butler and Aniston, who’ve been seen flirting and holding hands between takes, have denied a romance. But sources say Aniston, who moves straight on to promoting “Love Happens,” is fearing that things will cool now that they’ve gone their separate ways.