Texting pal, maybe

• #1 pal, lately
• "My New ___" (Paris Hilton reality show)
• Teen girl's close chum, for short
• Bosom buddy, in modern slang: Abbr
• With whom you might have a Snapchat streak, informally
• Close pal, to a teen girl: Abbr
• Closest pal, in texting shorthand
• Pal 'til the end, for short
• Real pal, for short

Wiktionary Word definitions in Wiktionary
n. (context text messaging Internet slang English) (initialism of best friend forever English)