Isn't he interested?

Went on a first date it was going really well good conversation with things in common. Few hours in i went to get a drink and he said he had to leave he had arranged to meet his mates for a drink. So we left give me a hug and a kiss said he had a nice time. He text me to make sure i got a taxi okay but havnt heard from him since. Just not sure if he was interested in me? Is it normal for a guy to leave a date to meet his mates?
Isn't he interested?
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