Why would a guy say to me “what a lucky guy, if you need someone to talk to im here” after telling him that I’m seeing someone?

He first asked me to hang out and then when i told him that im actually interested in someone he goes “what a lucky guy, well if you ever need someone to talk to im here”
Why would a guy say to me “what a lucky guy, if you need someone to talk to im here” after telling him that I’m seeing someone?
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