Though Ves stumbled a bit during his conversation with Juliet, the two did not compromise their ongoing collaboration. They were too mature and invested in their work to let their personal feelings interfere with their work. Both of them were professionals who strongly cared about finishing what they started to the best of their abilities.
Besides, Ves made up for his mistakes in the following hours. He talked about all kinds of topics with her during their ongoing design session.
None of the topics were all that sensitive. There was no harm in talking about simple matters such as Ves' children or what hobbies they were interested in. The sharing of information caused them to develop a closer friendship than before.
This put them in an excellent position to start the fabrication process.