Thank you for reporting this to Corporate. About 14 or so years ago I took my two daughters and a friend, ages ranging from 18 to almost 21 on a Carribean cruise. The 30 something DJ was stalking and preying on the friend. He chastised me for being overprotective, as I never let then out of my sight, and I told him that I knew what guys like him were all about, etc etc. He finally caught the friend alone and propositioned her. Once she saw for herself what he was all about she was shocked and disgusted and put him in his place. That was the end of that.
I know that Princess has a zero-tolerance policy of crew socializing with passengers, but it most certainly does happen.