My niece is nineteen. She's my older sister's kid. She's seeing this guy who is just turned thirty. She met him at school, she calls him a "returning student" and she is a first year student. This is the story: they met when he was with his fiance of four years. This fiance was five 1/2 years younger than him. He broke it off with her b/c he told my niece he liked her. Now they are together my niece says they are having sex. My sister told me all this and I said wtf? She thinks it's ok. Does this guy sound like he is taking advantage of her? Is this weird to you?