It's 3am, and your ex just posted a new selfie. You know the drill.
When They're Happy
Don't. Just don't. You know what's good for you, friend.
When to Ignore Your Ex
When They're Sad
Send them a strongly-worded, passive-aggressive, totally-not-passive-aggressive-but-definitely-passive-aggressive message.
When to Play 'Don't Let It Go to Your Head'
When They're Angry
Just... don't.
When to Cry into Your Coffee Cup
When to Just Go Full-On Stalker
You know it's coming, you can't stop it, it's like the tide.
When to Channel Your Inner Private Investigator