Didn't make the wrong choice this time? Did he mean the last life after "he recovered his memories" or is he implying he was lying and he knew/had memories of the game for longer?
Perhaps he got his memories back sooner and decided to just go with the game to try to reach the true ending instead of helping the FMC and regretted it and decided to do something different this time?
Maybe I'm just too paranoid because everyone casually tells half truths in this. Lol