It could be a situation or actual objects. Sometimes it's a person's behaviour, which actually “re-trigger” an emotional response of similar intensity to the original traumatic incident.
People pleasing can be extremely exhausting. Not only does it run a poor girl ragged, but it often seeps into and destroys the foundation of any relationship it enters.
It is not illegal to start using a surname not registered on the child’s birth certificate but can this be formailsed without the consent of the other parent?