Is there anything in this scene (Tennessee Williams' A Streetcar Named Desire) which suggests the childhood relationship between Blanche and Stella?

Tennessee Williams' play, A Streetcar Named Desire, depicts numerous relationships between husbands and wives, sisters, and in-laws. Although the scene in question remains unnamed, numerous places in the play make suggestions regarding the relationship between Stella and Blanche, her sister. 

When Blanche first arrives at Stella's flat, in scene one, the conversation alludes to Blanche's overbearing nature (when the women were girls). "You never did give me a chance to say much, Blanche." Here, readers can assume that Blanche was very controlling, spoke a lot (probably even for Stella), and Stella clearly accepted it. 

In scene five, Stella states her liking of wanting on Blanche: "I like to wait on you, Blanche. It makes it seem more like home." Here, it seems as though Stella accepted her role as Blanche's "servant." She, Stella, probably accepted the fact that she lived in Blanche's shadow. This quote supports the initial quote provided above regarding Stella's inferior part in the relationship between her and her sister.