I'm going to rage quit and leave my girlfriend at her doorstep after she refused me to use her phone.
What happen to your phone?
I just wanted to snoop around her phone.
Wanting to use your significant other's phone is a sign of having issues with trust. Rather than be upset at your girlfriend's need for privacy and think about leaving her, try instead to figure out why you do not trust her. You may want to speak with a therapist to help resolve those feelings regarding lack of trust.
You sound like some jealous asshole, but fine I'm just going to go to bed.
It's better to sleep on it than make haste decision. You might regret it days later.