Lex's meeting with John was not all too special. Leo and John did not have a particularly deep bond, and the fact that Leo had been absent for so long didn't help either. But John treated Leo with professional courtesy.
He had amassed a good amount of MP, and had even become free from his restraints. That meant he had regained a lot of freedom, but that left him with the decision of what to do in the future.
He could go back to assassination and continue to raise his cultivation using the system. In fact, it was all but guaranteed that he would do that. But he could not make himself leave the Inn until Harry recovered either. He also recalled that a long time back, the Innkeeper offered him a job as well.