There are only two final solutions:
First, never meet him again (out of sight, out of mind; But this trick is not suitable for your situation)
Second, pay more attention to each other's advantages. Don't always pay attention to each other's shortcomings and bad habits or ways of speaking. Always look at each other's shortcomings. You can't change your attitude towards him. Only when you appreciate him and appreciate his advantages (the watch tells me that he has no advantages, as the ancients said: a threesome must have my teacher, not to mention he is your teacher), can you really change your opinion of him, and naturally your color will be pleasing (believe). I didn't copy it from somewhere, but I thought of it myself. It feels really good, and interpersonal relationships are easy to improve. If you treat everyone with kindness, you will live more easily every day. )