Final answer:
Jane's relationship with Bella is depicted as supportive and caring, given her responsibilities and the absence of negative interactions according to the provided lines.
Step-by-step explanation:
Based on lines 468-470, Jane's relationship with Bella seems to be supportive and caring. There are no indications of strain, competition, hostility, or significant affection in the given context. The focus appears to be on Jane's preoccupation with the responsibilities she has, including caring for Mrs. Larkin, which suggests her supportive role rather than a direct interaction with Bella that would imply a close personal relationship.