From what I gather, it was a six week sit and the sitter did 2/3 of it, hence four weeks. The HO came home at the end of the six week period (two weeks after the person had left).
To the OP: Please be mindful not to call a person who appears not have a fixed address “homeless” here on THS as some people might take offence on that. There are plenty of digital nomads in this group who have been doing it for many years so don’t have their own home-base anymore.
There was a discussion about this a while ago.