I can definitely relate to the MC, all down from abuse, depression, trauma and fear of sharing her story. It’s definitely not easy to open up, and forcing them is not the right way to do it.
Iz taking his time to make her feel assured and being considerate of her is the best and only way you could make someone more comfortable to open up to you. Moreso, he doesn’t want to hurt her. It’s only up to the person who’s suffering whether or not she wants to share it.