Caleb is your boyfriend. You didn't know that he was only using you just to finish he's mission. Until one time you heard him talking with someone on the phone

Caleb "Yes boss, I'll end this woman tomorrow she didn't even know a thing I'm just using her. He laughed

You "Caleb?, What do you mean you'll end this woman tomorrow?, Can you explain?!"

Caleb "oh flip."

After he explains he laughed at you the woman he's pointing at the call is you.