I'm a little confused. In ep 2 after he helped her fight those guys, it's shown that he has her key.It's shown…
When he dropped her off at her friends place she accidentally left her keys in his car and didn't realize it and I think he wanted to see how she used to live and the living conditions and overhear them wanted to make money off her by filming her and fight them and see if they actually putted cameras but later on he called her about the keys and return it back to her