How can you move out and live with your boyfriend in Davenport Iowa if you want to get married and you're 17 and he's 19 but your parents don't like him?

A person under the age of 18 in Iowa cannot be married w/o the permission of the parent(s) or legal guardian. The age of majority is also 18, therefore the parents could stop the minor from leaving home, and file complaints against the 19 years old. Such complaints could result in criminal charges and/or civil actions depending upon state laws.