[QUOTE=HopefullyLost1211;6391333]I am sorry you are in a tough place right now. Secretly tracking someone is a violation of their boundaries. That is not okay and I don't think it would provide you with the peace you are seeking. If there are trust concerns, I recommend open and calm communication. If that seems like it would be difficult for you two, I recommend couples therapy with an experienced therapist. Peace and healing energy to you

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I totally agree. If you take the high road, not stoop to his level, with your integrity intact; your conscience will be clear at the end of the road.
If he is doing something to break your trust, his guilt will follow him into the next relationship, while you keep your head up.
If he can agree to counseling, and be willing to be honest and own up to his mistakes, that would be the optimal outcome. If not, then it's probably better to cut the cord and free yourself from spending the rest of your life doubting and tracking someone on a daily basis. That would not be a life well spent. I wish you the best.