How to face the situation, when your friend know 'Tai Chi'

This happens during my college life. In a group assignment, my friend always used 'Tai Chi' to push everything for me. But in front of others, he will use his fabulous talking skills and make the mirage-like he is doing many things. Sometimes, I am really angry and sad about his attitude, but his speaking skills and social skills are very good. Hence, I think even I try to scold him there will be no changes. So, I choose to be quiet and bear all the works that push for me.
But after a few times of thinking and fighting within my soul, actually, i feel that I need to thank him. Because when I go for out after graduated, I will definitely meet this kind of people anyway. So he is just like a training for me, train my skills in coping this kind of situation.
The purpose of this blog is I want to convey the message to everyone same like me that meet the friends that always used 'Tai Chi', just bear with them because it is a very good training for you. Not need to fight with them or scold them, it is useless and maybe sometimes you will lose a bundle of friends.