The controversial midfielder has rebuilt his career at l'OM, which are keen to sign him permanently.
"I'm very well. It was difficult because I came into the group arriving late because of my suspension but after playing more, I've found my bearings," said Barton.
"For the festive season, there was a break that does not exist in England. It's good to be back after this recess. I love life and I'm lucky to be in Marseille and to play for a club like OM. It is a privilege," he told the club's website.