[M20] [F19], in a long-distance relationship, looking for advice on trust concerns.

**M20, F19, in a long-distance relationship, looking for advice on trust issues** I need some clarity on my current situation. I've been cheated on twice in the past, and I've had some doubts about my current girlfriend stemming from our early friendship. We developed feelings for each other, and now we're in a relationship where she has promised to prove my doubts wrong. She even went to a psychologist with me for support. She FaceTimes me throughout the day—while sleeping, waking up, using the bathroom, going to and from college, and even during class. We're basically on FaceTime all day, except when she's with her mom or focused on schoolwork. Despite all this, I still have lingering doubts. I worry that she might be secretly texting someone else. For instance, sometimes after we say goodbye, she goes offline just a minute after sending a text, which raises concerns. She’s even offered to install keyloggers and trackers on her phone and iPad to reassure me, but I’m feeling confused. What does she really want? Could she be using a burner phone? How would I find out? I don’t want to waste my time. **TL;DR:** My girlfriend is doing everything she can to ease my doubts, but my mind keeps thinking of the worst-case scenarios. I'm seeking help.