He wasn't really trying to make it a straight up make-out session, but it had been a long time since he had even an opportunity to have such a thing. Escalation seemed inevitable. He was trying to let her know that he didn't see her as an object or something. He was really not the sort to do that intentionally, but the more he kissed her the more he needed to kiss her, to touch her face, her hair.
He pulled back slightly. "I.. didn't realize.. didn't want to admit how I missed you, but I missed you so much." It seemed silly, but he had really hurt for her. He tried to act like he was ok with it and move on, but he couldn't. Thankfully he couldn't.