Am I an Asshole ?

I Just Broke Up with DM131. We had been friends from 1/31/2016 - 4/30/2017. I guess I had been enduring her for at least 5 months. Then broke off with her nicely. In that way, I am not an asshole. I am simply inconsiderate of her feelings. But she'll be fine. It wasn't that real for me anyways.

I did feel a little sad and guilty.

But that sadness and guilt went away pretty quickly the more I analyze her behavior and thinking.