The former Lyon defender arrived in the summer.
"These fans are something different to what I've experienced before," he told the Saints website. "Against West Brom, I didn't expect to have so many fans on our side. I was actually quite touched, and it made me want to do my best for them. It was a long trip they made, so if they make that step then I will follow them.
"I think it's a good thing to have a relationship with them because, when the bad days come, somebody will stay behind you. Things aren't always perfect. I will try to be the best all the time, but it's not always possible.
"The most important thing from the first three months that I've been here is that I've been accepted at the Club. I'm happy about that. I love being in contact with fans. I want to show people my normal life because I'm a normal person, just like them. Before I became a player, I was a fan."