Younger man engaged to older women, what should I do or think?

I have been with this women for over a year and a few months. Last month we had a fight and asked me to move out. I did, but she said we were still together. But she has not called or even made the effort in any way. I text her kids everyday and write her letter everyday and she never calls or anything. She has called once or twice and that was cause she needed something, but I told her I would do anything for and it feels like she has been using me. I love her with all my heart and have noticed she doesn't wear the engagement ring I gave her and when I tell her I love her she doesn't seem to care or she is rushing me to leave. What should I do or think? Should I wait for her like I promised?