A broken heart feels like a heart on a grill. When you have a broken heart from love, the flames are really high and crazy and the heart gets burnt to a crisp relatively fast, and then it becomes a lump of hardened carbon which eventually turns into ash. The process is a lot slower when you are broken-hearted over a diminished friendship. There are no flames, just coals. The heart is grilled slower, but more thoroughly. The change to ash may never come - and within the change to ash resides catharsis. Ash can be blown away in the wind. So, since the heart never gets turned to ash, in the case of a broken friendship heart, it instead just stays in its hardened, slow-cooked state forever. Until it slowly rots and breaks down.

Friend, I miss you. My heart aches for you, as it's roasted over the coals of what's come between us.