Am I unattractive, or is my friend disrespecting me?

A friend and I went out. My friend comes up to me to get me to join him and 2 girls. I introduce myself, and I start talking to one of them. Well, the other girl goes to the bathroom, and my friend starts chatting with the girl I've been talking to. She goes over to him, and they exchange numbers. Her friend comes back, and I start talking to her again and get her number before they leave. He walks away with both of their numbers, and I'm just confused, lol.
Am I unattractive, or is my friend disrespecting me?
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