Why would a narcissist think I'm his friend?

My narcissistic ex boyfriend contacted today (a couple hours ago) on my WhatsApp through another new number. He does that several months later, contacts me under different numbers.

His message: Hi my friend

Me: blocks that number too

Neither me nor any of my friends nor family want anything to do with him. He took money from me and had the nerves to call me friend. Why would he think I'm his friend?

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+1 y
This idiot stalks my fb page through different usernames since I've blocked him already. He once admitted that he found out about my 2nd break-up from a while back. The only way he would know this is by checking on my FB activities. Therefore, he's my FB stalker.
Why would a narcissist think I'm his friend?
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