You had a crush on him. It was obvious to everyone but him and it made you frustrated. You had forgotten your coffee so you were a bit grumpy and Clark noticed so he decided to buy you some coffee

You were venting your feelings to your colleague "how can someone be so adorable and HOT AT THE SAME TIME??" You yell in frustration

At that moment Clark comes rushing in the office holding a cup of coffee and out of breath he walks to you and smiles "I brought you coffee"

Your heart melts