Dream of ignore

I have recurring dreams where an ex lover appears. The dreams themselves are different from one another. I'm usually focused on something else in the dreams - tasks, people, work, music - when he appears. In each dream, I purposely try to avoid or ignore him, but he always makes a point of interacting. One dream recently was to say something negative, and in one last night he gave me a gift. Our relationship in waking life did not end well. I was very angry with him in the end, and with myself at the time because the relationship was not healthy nor good, and I had felt stupid and ashamed about how much I'd shared with him emotionally and physically. The last time I spoke to him was over two and a half years ago, and I don't think about him consciously anymore (though I did for quite some time after the initial parting because I was so upset and working out my feelings). Why is he showing up in my dreams now? I know it is not because I have any positive feelings for him, nor do I want to see him again. Am I still working out what happened? Maybe I am still reconciling my feelings about how I acted and my life and my actions? Is it something in my life now? I don't think anything is more different now than any time over the last few years, but perhaps this is a sign of feelings and actions I am not conscious of?