i won't be long - I’ll be back before your coffee goes cold and your patience

I’ll be back before your coffee goes cold and your patience turns to ash

I won’t be long. (He left. The coffee is now a black hole.)

I won’t be long. (He came back with a latte and a side of insults.)

I won’t be long. (He came back 45 minutes later, with a side of sarcasm.)