[quote=@Stabby]
Shinji is going to go with the demon he knows rather then risk the chance of running into one he could never see coming again, isn't he?

After all, the one who's thoughts run in circles is like the snake eating it's own tail. Until they can realize this for themselves and have the desire to change, there is no convincing them to do otherwise.
[/quote]

You are correct. Hes stuck in that loop. Its mostly due to his mental illnesses and despreate need for love.