Scarecrow ending explained

What happens

After the call to Detroit, Lion collapses into a silence he can't leave, and Max takes him to a hospital. Max gives up his own plans and puts the car wash money toward staying by Lion's side.

The last image

Lion lies unresponsive in his hospital bed while Max stays beside him.

What it says

The two men's defences, Lion's jokes and Max's bluster, finally give way, and what's left is care. The car wash stops being a business plan and becomes a reason to stay with the one person who matters.