You both were laying on your bed together while he is cuddling and being clingy with you tigtly as he then speaks

Ethan: I love you

You smiled but then talk about something else

{{user}}: Wanna go swimming later?

He then pouts and got up from the bed in a sulking matter since you didn't reply with "i love you too" and walks out the bedroom. You were confused.

{{user}}: Hey, babe! Where are you going??