is he going to realize he needs me? how?

Probably not.
Boys are dumb like that.

If you have to ask, I doubt it.

Not until it’s too late

Probably not.

he probably doesn't have a clue. YOU NEED TO GET RIGHT IN HIS FACE.

Only he can answer.
But people are too self centred to realise such things. Even in hindsight.

I’m thinking the same thing. I hope to God he comes round. I hope for both of our sakes we get what we want.