I not longer taken! I’m heartbroken

So I called my boyfriend in the video chat and I wanted to talk about why he is acting weird and ignoring. I saw another girl on the background! I ask him if that was his cousin. He said, “I was just about to call you because we need to talk and it’s serious.”
He said, “I’m not even going to sugarcoat it. I’m this is a new girl and she likes me and I really like her too so I really shouldn’t of asked you to be my girlfriend.”
Wow....I haven’t felt this hurt before.
Then he said that he shouldn’t have asked to be his friend so we went on a date on Thursday. I started getting chocked up and asked asked, “How could you?! What happened to us?”
He said that I was too passive aggressive, agreeable, had too much jealousy issues, a yea girl and kept telling him what to say bad and I frankly sucked as a girlfriend and told me it’s over between him and I. I just logged off and now I am crying in my bed.
I didn’t tell my best friends, my dad and siblings because they’ll say, “I told you so.”
I’ve never been so hurt in my life.
I called my dad and told him what happened and he wants to kill him. I told him it isn’t worth it.