Is this behavior manipulative or cute?

I went on a date with a guy, and we instantly clicked. We shared the exact same interests, values, etc. He was like my twin. I didn't suspect anything because he was the one who would talk about those interests first. He wasn't just agreeing with what I was saying. Our friend in common later confessed that my date actually "studied" my instagram before the date, and pretended to be interested in all these things just to get me to like him. My friends are telling me that it's cute, but I actually feel manipulated. What do you guys think?
Is this behavior manipulative or cute?
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