This is how it starts. Where it leads depends on many things, but this is how it starts. Kind-hearted people have their totally normal sense of reality eroded until other abuses creep in and create more trauma.
The topsy turvy world the victim/survivor lives in due to the gas-lighting is such an integral part of the trauma bond. When you feel like you can’t even trust your own perceptions, you cling to the person supposedly helping you.
Be careful. Trust yourself first.