Guy's Behavior

Why do I still like him?

For context: I’m 17, female, never had my first kiss and never had a boyfriend.

I got really close with a guy in my friend group and we were really close and he hinted that he liked me heaps. We would flirt heaps and heaps and he definitely was flirting too. But then one day we were just done talking then I put my headphones in but kept them on quiet and he turned to his cool friends and said “get with the ugly one, you get with the hot one”. He was referring to my friend who is not his friend. This female friend of my is absolutely gorgeous.
He is not really that cute but I felt a sexual connection to him but now I think he was using me.
The thing is though that I would still hook up with him if I got the chance. Is there something wrong with me? Am I desperate?
Why do I still like him?
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