Snow Golems should heal when its snowing and with snowballs

The jovial snowy defenders of the world, Snow Golems are meant to be useful protectors, but should be buffed to increase their effectiveness. To make Snow Golems more self-dependent they should be healed when hit by a snowball (from a player or another snow golem) and while being in a snowfall. When two snow golems hit each other with snowballs they shouldn't become hostile towards each other, but instead, they should hit each other with snowballs when the other is low on health to keep them alive. This would show that Snow Golems are somewhat sentient and are empathetical as they try to help each other survive in the face of danger, which really pushes their image of being a gentle, small protector.