Need advice pls read (Friendship related)

So I have a friend that ghosted me bc of their personal reasons (even I don't know what exactly prompted them to) but we were super duper close, as in the type of close where we could tell what each other would say without speaking, looking at each other is enough to say a million gossips etc. I truly valued them and loved them (as a friend) so much, so it broke me when all of it happened, and I didn't even get a reason why. Its beed 6 months. I found out that they ghosted me on their bday when they ignored my art gift and well wishes (though we stopped talking during February I didn't realize it was her ghosting me bc I was also busy) so I didn't get to give them the gift I prepared which was:

A handwritten letter
Collage photos of us
Pins of their fav characters with my art
Printed image of the art of them I made
ALST figure
Haikaveh rings (we planned to cosduo them)

We had so many cosduos planned and I can't imagine cosplaying those characters without them now, because I made a promise. Honestly they were the most in sync friend I've ever had, and even now that I've been hurt and ghosted by them for the 3rd time (this time the permanence is devastating) which dealt a huge blow to my mental health, I still can't seem to let them go and accept that fact standing still.

So my question is should I ask a mutual friend a favor to give the gift to them? If all goes well there's a chance they might talk to me, if it goes awry then maybe I'll get some closure. Thanks for reading I really appreciate it.