hi patdavis and

im glad you found us. i know that anxiety very well, its scary and anxiety inducing when our partner changes, or pulls away with distance, especially when we perceive things to be going smoothly, it can lead to obsessing toward resolution as you mention.
is your girlfriend diagnosed with BPD? leaving for university and being two hours apart can be an obstacle for any relationship. can you elaborate on how her mental health is sky rocketing, and not the same person right now? this will give us better information with which to help you.