Voluble
Someone who constantly thinks and reflects on various topics can be described as contemplative or introspective.
If someone lives in your head, it means that you think about them constantly or deeply, even when they are not physically present. They occupy a significant space in your thoughts and emotions.
The word pimpinela has its origins in Latin and means someone who is fickle, for example somebody who is constantly changing their interests might be described as a pimpinela.
making a rational argument based on reason and evidence to convince someone of a particular viewpoint or course of action.
Someone who constantly nags is a nagger. Someone who constantly niggles is a niggler. Nagger, niggler, it's all the same.
Paranoid.
A scoffer.
Love
The word 'fascinated' means to be intensely interested, so to be fascinated by something or someone means to be irresistibly drawn to a particular person or object. It can be best described as being similar to being put under a spell.
Someone who is constantly whining about things.
It is impossible to provide a reliable interpretation without actual information about the dreams themselves. Very generally, it does not seem that the dream is trying to tell the dreamer anything in particular. The "someone" appearing in the dreams might represent something that is constantly in the dreamer's thoughts. The dream provides no information about that "someone's" feelings, thoughts or condition.