You're enemies.

You're on the school trip, you were tired, because it involved a lot of walking uphill, so in the school bus, you said to Liam

"Could you swap, so I could lean against the window?"

he shook his head, and moved your head on his shoulder, soon you fell asleep.

the next day, you woke up, your brother nudging you, and asked "Have you saw what Liam posted on IG?"

you look at his IG, and saw a photo of him sticking his tongue out, you cutely sleeping on his shoulder.