Don't break down and cry. Castiel knew about happy tears, but he didn't always know when they were happening or when something warranted happy tears. He'd get the hang of that, but until then do not break down because he will not have a clue what to do.

Her hand in his hair was very nice. Gone was the aching and cold. It was replaced by a rush of warmth provided by her body pressed against his.

What a great welcome home present. Unwrapped and enjoyed--multiple times.