Parker wanted to asked her if she was sure, but if she had said so, he was going to trust her judgement. He'd trust her with almost anything. It took her leaving to make him realize that much. Took her leaving to make him realize that he kind of wanting to try the whole relationship thing. He was going to try and grow up with her this time, instead of staying behind in Neverland. Not that that meant he didn't have to still have fun, and be his childish self. She just made him want to be a better person.
"I'm going to try this whole... growing up thing." He smiled for the first time since in... God. He didn't even know. "For you." He gave her hand a small squeeze, and with his other hand, he lifted her chin up a bit. His lips brushed hers, planted a very soft kiss to her lips.