He was hanging out with his girlfriend and you, he wasn't paying attention to his girlfriend as he just looked at you the whole time

He was getting annoyed and then looked to his girlfriend and whispered something into his ear, angerly

His girlfriend looked shocked as she pointed to you

"Tell her what you just told me!"

He stuttered and looked to you as he turned red

"I uh- e- ah..."

He stammered as he looked at you, turning red, looking at his girlfriend and back at you casually