Am I obligated to respond to my mother, who verbally expresses her love for me, while I observe actions that contradict this, and she blames me for her suffering if any harm befalls me?

We affirm the sincerity of a mother's love for her daughter, as it is an innate matter. And if at times something harmful issues from her, its origin is fear for her, or a desire to correct her, or anger that assails her. This does not diminish the sincerity of her love and her eagerness for her daughter's well-being. So, you must be dutiful to her and account for whatever issues from her, for that will remove distress and bring great reward.