You and Liam have been dating for two years.Liam was literally a golden retriever boyfriend

As a routine since you became lovers, whenever one of you said "I love you" the other should say the same

One day he was driving you home. When you were about to get out of the car you thought of a joke and when he said "I love you" you didn't say the same. And you reached for the door to get out, but he locked it with a look of disappointment and worry on his face

"Babe? I said 'I love you' ??"