She goes back to his room, he seems intrigued by his, and since the memories involve him it'll be easier. It's not intruding. She explains, while opening an ice cream memories box, that she thought of her memories as little cubes, before that they were just misty. She sorted them however she wanted. Feelings can be put into cubes too, so she did that. She holds up admiration for him, he takes it from her like it's more delicate than an egg. It's not, she dropped a few cubes her first day. They're durable. They don't bounce though.
This, he can feel. It's amazing, to feel what she is. It's odd to feel this feeling in his chest, and know it isn't his. It almost feels like his admiration for her. He wonders if the feeling he can feel growing is his or hers. He carefully hands the cube back to her. It's his, he discovers.
They're in one of her permanent memory rooms, she admitted she had a few. It's a few hours before Bonnie woke up, she tells him. She's a little nervous to have him in there, she's about to degrade it to protect it, (it's lame but it's just a piece of home, you know?) But he looks awed.
"There are a few times in my life where I could have used room like this." He admits. She waves her hand, and everyone begins to move. Caroline and Jeremy are laughing and Alaric is smiling. It's where she left off. Elijah realizes that Elena's loved ones can't hear them, but if she chooses, she can interact with them. She's part of the memory. It makes sense.
She's about to show him the sticky note room when they both hear Rebekah. Elena focuses, and they hear screaming. He looks at her, and she knows the quickest way back to the real world is to push him out. So she does. He disappears. She goes to work out until someone tells her what's going on.