You might be tempted to reason that pointing out his wrong would damage your friendship.
يَتَذَكَّرُ جَانِّي ٱلْمَذْكُورُ سَابِقًا :‏ « لَاحَظْتُ أَنَّ مَاوْرِيتْسْيُو تَغَيَّرَ ،‏ وَمَا عَادَ صَرِيحًا مَعِي كَٱلسَّابِقِ .‏