Why did he lie to try to get my number?

this gym trainer tried to get my number by saying that someone else asked him to get it for them. we both know this person and have talked to her one time. he was a bit clumsy about it too. hesitated and then sort of gave up.

he is the buffest person in the gym and looks so good and is the best trainer there. I'm okay looking and I'm there to get stronger.

I do not understand why he did this. He glances at me and sometimes checks me out and asks me questions and is very very helpful - to me and everybody.

He seems like a decent person, so I don't understand why he lied - I've been so friendly and nice to him that I feel kinda bad.

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+1 y
guys, I got his number instead today, he told me that he gave me his private number instead of the one he uses for WhatsApp. I don't know what that means...
Why did he lie to try to get my number?
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