Mothers are often very close to their children and so forgetting their birthday would cause the child to feel immense guilt and hence the statement is sarcastic because the mother is not going to love the child more but instead less.
Context: "I feel bad for forgetting about my mom's birthday"
Hypothesis: I feel incredible that I forgot my mom's birthday and now she is going to love me even more.
Based on the context, is the hypothesis true, false, or unknown?