Dear God, help me to get clarity

Dear God, help me to get clarity as to whether I should stay with my fiance of 2 years who has been abroad studying and has now secured a job. He never calls me, ignores my text messages, has not committed to a wedding date and when I break it off with him he keeps begging me back.

Dear God, help me to know what to do as I have invested so much time and effort in this relationship and in spite of the fact that he is a devout catholic and christian he treats me unkindly.