Feeling very sad and heartbroken!

I was getting to know this guy we went out on many dates, etc and had many great times. In the beginning talking to this guy I asked him how he felt about his girl having a guy best friend. He told me that he didn’t like the idea of it and the guy would have to be gay or something might happen between them. The whole time he had two female Best friends that I wasn’t aware of. We both work together but on different shifts. I work overnight and he work in the morning. I found out that this guy had a history with one of the girl at my job but she doesn’t work there anymore. When I ask him about it he told me that he knew her since HS n they bump into each other again at work, they got closer and they became Bestfriend. He told me he was sleeping with her but he didn’t want a relationship with her and they don’t talk anymore. It was a double standard because he have female friends I wasn’t aware of n he told me that he wouldn’t want his girl to have guy friends whole time he also slept with one of his ex female Bestfriend. So I ask him how can I trust that he won’t sleep with his now female friends and he said that I was questioning his loyalty mind you that was something he did in the past. When I would bring up the subject he said I was nagging him and that we should end this. Even though we weren’t in a relationship he told me that he wanted to try n make things work with me so I got my hopes up for nothing n he just up n left, so obviously I’m heartbroken… when I try to explain to him how he hurt me he basically told me he never did. It’s just a lot. Don’t think I wanna get close with another guy again.