Ray J and Princess Love are still husband and wife -- doing the whole co-parenting thing -- but they're not back under the same roof, and that's just the way they like it for now. Sources close to the couple tell TMZ ... they still haven't reconciled after she claimed in November he'd "stranded" her and their daughter, Melody, in Vegas after a heated argument. Remember, Princess was weeks away from giving birth to their second child at the time.