I'm so sorry you're going through this. He doesn't seem to care about women or girls all that much- in my opinion- and a focus on teens and young girls is pretty concerning. It's something you're not comfortable with- on moral grounds- AND it's effecting your love life.

The key is open and honest communication- tell it to him as honestly and openly as possible. If he refuses to talk or dismisses your feelings and concerns you will continue to feel neglected and unloved and like he just doesn't care. You don't want to spend your life with someone like this.