The fast-paced part is supposed to represent the heat and fire, the square plucks representing cackling fire. Meanwhile, the slow piano is supposed to represent the snow falling, and at the end, they unite.

At times it might seem like we're complete opposites, but we're attracted to each other.

you're more like fire than you know, down and down we go,
onto the next thing it always seems to be
taking us all over and in between,
farthest shadows cast at night, do we even know what's right?
Fire fire on the wall, ice will bring it down on us all,
don't be sweet and tell me cold, am I here being too bold? 
When we fight and when we flame, can I always ask your name?
When will it be the greatest time to feel, will we always be here making a scene,
 in the fire and in the ice, trapped like we're in the wall like mice,
but is it even right, the bite of the storm and the ice

[TokaiChan, Kojjie]
But I don’t know where the flames have gone.
Where I can’t hear the ice no more

[KieranValor, Sento, Kojjie]
Like a dance of chaos swirling,
in a tempest wild and free,
We’re the beauty in the madness, the cold to my flame.
Freezing us to sleep

[SystematicPastels]
But when the world
Ends in flames,
I’ve been sitting
Burning in my brain,
Trying to hide my pain.

But when it’s frosted, Outside.
I wonder, Has it come to time?
But when it’s closeted.
I wonder if I’m truly alright.
[TokaiChan, Kojjie]
I’ve been fro–st bitten
Lo—st gettin’
Caught in all the ways hurtin’
Flame buildin’
Heat glazin’
But maybe I’m just cappin’
[ x2 ]

[TokaiChan, Kojjie]
But I don’t know where the flames have gone.
Where I can’t hear the ice no more

'freezing' high ends + 'warm' low ends

This would have turned out better if I didn't keep recording over my melody part by accident