Asked crush out to line dancing and got rejected?

My crush I am pretty sure has a crush on me. I am 26, he is 30. He ogles at me and tries to hide it, smiles at me often with eye contact, steals glances, and acts like a gentleman, especially around my parents. Overall happy to see me. I asked him if he wanted to go line dancing today and he said a mutual friend would be interested. I don’t get it, why did he reject me? I am thinking he has to be taken. Should I ask him if he is? Does he really think I am just being friendly and he’s shy?

Asked crush out to line dancing and got rejected?
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