Adding a comment/comments icon(s) using JetPack sharing with Genericons

My website is ohmybonbon.com, and beneath each post you will see that I am utilizing JetPack’s sharing option, with styled Genericons.

I would like to add some custom buttons to the array, namely “comments” using the Genericons content: '\f108';, to display in the same manner as the rest of the sharing buttons (with the number of shares appearing over the Genericon).

Apologies if what I’m asking to do is being inquired about in a confusing manner; any help solving this will be greatly appreciated!

Thanks so much!

https://www.ads-software.com/plugins/jetpack/