Okay, I have now had time to properly read this again and actually come up with a response that is mostly coherent.

I love how Isabel imagines her relationship with Richard here--in her head, it all exists, and that of course fits beautifully with what we've seen in the play (especially creepy pregnancy metaphors--oh, my goodness, that is so effective here). It doesn't matter what has or has not actually happened; what matters is how she's looking at it and imagining it. Beautifully written and so very, very sad.