Yeah. It's actually feeling pretty realistic how she was coping so well with her condition as long as she continued the "not to bother anyone" way of life. After all, it surely must have kept her own life empty as well: empty of fears and hopes equally. But now that she dared dream a bit, it all crashed as the hopelessness of her situation came back in full force. Who knows what she was like when she first learned the truth of her situation (many times), but likely something closer to how she behaved in this ep.