Ah, I see! It seems like you're analyzing a play, and you're referring to a specific scene where Walter reacts to his mother's purchase of a house. You're asking about Walter's purpose in his final comments to his mother, Mama.
Based on the context, it appears that Walter is expressing his disappointment and frustration with his mother's decision. He feels that she has "butchered up a dream of mine" by using the insurance money to buy a house instead of investing in his liquor store venture.
Walter's purpose in his last comments to Mama seems to be:
1. To express his feelings of betrayal and disappointment.
2. To emphasize the importance of his dream and how it has been ruined.
3. To guilt trip his mother into understanding his perspective and perhaps reconsidering her decision.
Overall, Walter's response reveals his emotional investment in his dream and his sense of disappointment and frustration with his mother's choice.
