The fuller answer
Living with one parent can involve closeness, financial pressure, schedule strain, missing the other parent, relief from conflict, or several of these at once. The structure alone does not determine whether a home is stable or loving.
A child may try to become the absent adult, protect the parent from stress, or hide needs because money and time are tight. Helping is different from carrying adult responsibility.
Questions about the other parent are allowed. A young person does not have to choose between loving the parent who is present and feeling curiosity, anger, grief, or loyalty toward someone who is absent.