"I..." He forgot how to breathe, and his eyes went impossibly large at Sam's words, and he opened and closed his mouth several times. He... had no idea what to say to that. Because he hadn't been expecting it, and it made him so happy, but at the same time, hearing it returned to him, made him feel terrified. Because he knew his feelings were strong for Sam, and the thought that if he messed up? Like he'd been doing after every turn lately? It could ruin everything, and he did love Sam an impossible amount. "...wow, I wasn't expecting to hear that from you." But he's smiling, widely finally, as he lets it finally sink into his head, because there was only one response he could give Sam, if he was completely honest to them both. "And I love you, Sam. So much that it's really kinda crazy."