I'd my BFF a narc? And did I made the right call to go on full no contact?

Hi.

So a little bit of context.

Proximately a year ago my BFF hit me with a discard after 15 years of friendship. For 15 years I never even gave a thought that he can be toxic at all. The trouble started when he begged me to find new friends for him. Now I know that the narcissist supposed to be charismatic. But nonetheless he managed to get in the friend groups I formed online. And as soon as he got in he refused to hang out with me in private or at all.

I always got the replies of "I am not feeling good rn" or "I am not in the mood" while he right after went and hang out with other people.

The other thing he did, is copying me. Whenever I made art or a meme he made 3 more within an hour and posted it right after me in the same group.

I brought up my issues to him. Hoping I can talk it out with my BFF. What he answered with was silence. When I ignored him and blocked him he still managed to get under my skin with replies that only I can understand the meaning behind. Also his apologies, if I can call it that felt fake and half baked.

I had to leave all the friends I made behind just because of him.

I still don't have propper closure and sometimes I doubt that he is a narcissist.

So I ask you, was I overreacting and making a mistake, or is my BFF truly a narcissist?