He is like the tide, his feelings are.
He comes in on a wave swirling around your ankles but when you reach down to touch it the waves have already receded back into the ocean.
That is what he is like.
When you get to close he backs away so that you never really know what he is thinking.
He can put on an outward appearance of being calm and stable.
Then you can look out onto the ocean and see waves of chaos.
You barely get to touch him before he backs away.