Possible Clues:

• 'Jeez, you should keep that private'
• 'Didn't need to know that,' briefly
• Reaction to an overshare
• Texter's ''Enough said''
• 'That's way more than I want to know!'
• Texter's "Eww, stop!"
• Texter's ''Enough already''
• Texter's "You're oversharing!"
• 'I didn't need the details,' briefly
• Initials meaning 'I've heard enough'