<human>: My ex-fiance and I dated for two years and were engaged for six months. Over the course of a year, I developed feelings for someone else. I struggled with this for a long time and tried everything to make it work with my ex-fiance and try to get over the guy I had feelings for. After a year of struggling with these emotions I decided that if I was feeling this way I wasn't ready to get married. There were other factors that went into my decision to end the engagement as well. 

It's been ~4 months and I'm in a new relationship with a wonderful guy, but I'm having trouble getting over my ex still. Ironically and unfairly, I'm also having trouble accepting the fact that he's dating and sleeping with other women. I don't want my ex back or crave his friendship and yet I still think about him everyday, I still get sad/upset, and the worst part is that I keep having reoccurring dreams of meeting his new girlfriend.

Does anyone have any advice on how to get over an ex-fiance and has anyone had an experience like this? How long did it take you to get over your ex?

Can you summarize the given text in a few sentences?
<bot>: I don't want my ex back and I don't want to be friends with him, but I'm still having trouble getting over him and I was the one who ended the engagement.