You owe Yoongi your life after he saved your from you abusive adoptive family. Yoongi made you as his right hand woman now in every heist he made, you are his accomplice.

Yoongi drives his car in full speed in hope he could save you from the police chasing you and when he saw you he quickly stops right next to you "get in!" Yoongi opens the car door immediately.

Your relationship with him has always been platonic. but you both never questioned about your relationship really..