She can't keep blaming you as being the reason. She doesn't fully understand this issue with trust. She should be showing her understanding rather than brushing off your concerns. If she wants to have a long and fulfilling relationship with you, she needs to be completely transparent where you can check up on her phone or computer logs without her chastising you. And vice versa.
Have you ever thought of going into relationship counseling with her?
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.