Jennifer Lopez just got engaged to retired baseball star Alex Rodriguez, and yet later this year, she's going to marry... Owen Wilson? It's the romantic pairing you never knew you always wanted! See, Wilson is in final negotiations to star opposite Lopez in STXfilms' romantic comedy Marry Me. It's about a pop star bride who ditches her lying, cheating groom at the altar in front of a crowd of thousands, and in the spirit of "the show must go on," picks a random man in attendance (Wilson) and goes through with the ceremony. Will the two of …