Lady Mel, this is a little gem and it flows so well. Everything about it is perfect and I've read it many times and found it much more beautiful than the time before.
The title linked nicely to the content which was most certainly majestic.
1/ The first line makes me believe that both parties are either very cold or have had a bad time with love in the past therefore they're 'draped icy chill' but then I read on and believe it's just that they are outside in winter and it's freezing and they kiss as snow begins to fall which is a lovely image.
2/ I absolutely love this part, it oozes with wonderful imagery and I imagine sparks flying as they kissed and the love they have shining out of them.
3/ I love the ending here again it's beautiful and I think the very last line says that their love is 'set in the stone' which in turn means it'll last forever - perfect.
Well, this write looks very realistic.
I mean one must have gone deep in the loving zone, felt every scene while reading this wonderful flow. The warmth of true love can pass through every danger, I agree with you.
So, seems like you are looking forward to destroy the whole ice castle with the warmth of your magical lips.