It sounds like he had a good friend who moved away, or they went on separate paths. "but winter ends, and new leaves grow and now I'll never never never let this go. The way it felt when things turned cold, our bodies freezing as our hearts turned cold." When a good friend of yours moves away, or you part separate ways you often feel bitter or "cold". He reveals he misses that person though when he thanks her/him for just listening to what he had to say even if it wasn't important.
It sounds like he had a good friend who moved away, or they went on separate paths. "but winter ends, and new leaves grow and now I'll never never never let this go. The way it felt when things turned cold, our bodies freezing as our hearts turned cold." When a good friend of yours moves away, or you part separate ways you often feel bitter or "cold". He reveals he misses that person though when he thanks her/him for just listening to what he had to say even if it wasn't important.