Jean's nerves were frayed. Besides the issues with Cosette at the hospital during quarantine and he was incredibly worried that with every passing month the net was closing in. He was out technically an outlaw, just living under an assumed name, living an assumed life.
Some days he felt like telling Cosette everything.
But every day, he was too much of a coward.
The doorebell rang, and Valjean looked up in surprise, the guise of Fauchelevant already slipping over his face. He wasn't expecting any callers, so he opened the door with slight trepidation.