I am looking for a term with bad connotation. I am aware of the popular terms like "he/she has no personality", pliable, malleable, weak-minded but i couldn't find any more on the insulting side. It could be an idiom or a single word.
I just bought this bag yesterday and he came today with a new one too
He never talks to her and now he does –just because I did in the morning. He is such a ____