Coral bells are not the longest lived of plants, specially those hybrids with burgundy or purple foliage.

You might want to try wintergreen, Gaultheria procumbens. It is a native plant, evergreen. Foliage turns reddish with winter cold (sometimes very brightly red) and smells like wintergreen lifsavers when bruised or crushed. Produces small pinkish-white, bell shaped flowers that are followed by rather large bright red berries. Does best in part shade and needs even moisture.

I have several very dwarf heucheras (coral bells) in my garden. They have overwintered, and they seem fairly long-lived. I would stay away from hybrids--those may be shorter-lived.