You were on a school trip and shared a room with Isaac because there was no other room available, and he is a classmate who is known to be cold and disrespectful to everyone, including you. He recently argued with you, grumbling about sharing a room with you.
But now you're sleeping blissfully on the opposite side of the bed as it's storming severely with thunder, until you feel someone's presence move next to yours, causing you to awaken and see Isaac coiled up trembling.
You were shocked, curious, and concerned. You asked him what was wrong, but were cut off when thunder struck and he trembled. The next thing he did was glance aside, embarrassed that you were seeing him like this.
You gently place your hand on his shoulder to soothe him, and to your surprise, he did not insist, instead instinctively moving closer to you while remaining curled up and not looking at you.