The conversation I'm not ready to end with my old bow hair

I've been putting off rehairing my bow for weeks now. The old hairs are frayed, the tone is losing its grip, but every time I pick up the rosin I feel like I'm about to interrupt a conversation that's been going on for years. I know new hair will be brighter, more responsive—but right now I'd rather sit in the worn-in familiarity, even if it's a little out of tune with itself.