I was dating a guy who announced to me that he wanted to start seeing someone else.
He said, "I don't want you to get the wrong idea if you see me holding hands with another woman."
I said, "Wait are you dumping me?!"
He said, "Well yeah." What an idiot!
He was younger than me and Jewish. I am Catholic.
He said, "I think that I should be with a Jewish girl closer to my age. I am not going to be ready to get married for a few years."
I'm thinking you knew my age and religion before we started dating so why did you tell me that you wanted to have a relationship with me. Also
if I wanted to get married, why would I be dating a 23 year old boy who lives with his parents and makes a fraction of my salary?! My thoughts are mean.
I said, "You're an idiot! Really an idiot!"
So we remain friends. He puts the moves on me one day at his place. I really figured things were over and he wanted me back. Things are progressing nicely.

He gets a phone call from the other woman. I didn't realize it was a woman until I overheard a part of the conversation. I am leaving and I am pissed!

He ignored me for a phone call with that other woman.
As I am waiting for the elevator, he said, "Well it's not like we are exclusive. In fact I am involved with four different women from four different states."
I asked, "Including me?"
He said, "You, someone from Florida, Connecticut, and Pennsylvania."
I said, "Well now you have one less woman to worry about."
He started to make up some type of excuse or explanation. I really don't remember because I was so angry.
I told him, "You are a bad man, a really bad man." Then I left.
I don't bother fighting over men. If they can't appreciate me and me alone, I don't waste my time anymore. Younger man and I run into each other every now and then. He always tells me how beautiful and wonderful I am. I tell him my boyfriend thinks so, too. I'm thinking eat your heart out, idiot!