It could be said that Annie´s tone (lines 121-149) tends to reflect her attitude towards her situation and the people around her so in this case she sounds upset about Helen situation and it seems that she is not able to control her.
The difference between a monologue and a soliloquy is in the fact that in a monologue, the speaker is addressing an audience, whereas in a soliloquy, the author is just thinking out loud, as it his intended for himself. This is used so that the audience can better understand the internal struggles of the character.
These. it is demonstrating what the speaker is taking about
