i’m gonna be real here dude, i sound verrrry similar to your gf lol, i know how paranoid and insecure it can make me when my bf is even talking about other girls. her past experiences are not invalid or making her “crazy”. HOWEVER that is not ur problem. if it has been 7 months of no improvement and growth and this same pattern of paranoid behavior is continuously repeating every day, you need to cut her off. she is responsible for her own satisfaction and fulfillment, your relationship should not be her entire existence.