Teresa's frigid personality seemingly makes her a standoffish person with a warm spot only for Oscar. Although she is not necessarily cruel, the cold air surrounding her often makes others question her compassion. Her love for Oscar, however, shatters all such assumptions, as she is shown to hold him the most dearest to her heart, above all else. With no family to care for her but him, Teresa relentlessly looks after and cares for him, to the point that she risks her own life simply so that he will not risk his.