回复：理解写这么长是你需要倾诉长久以来受的伤害.这是好事．

Thank you, everybody. You are right, he has his own problem, whenever he feels something wrong in his relationship, he would run away and look for another relationship, instead of trying to put effort to solve the problem, just like he did with his EX and me. I just couldn't believe what he did to me, he always promised me that he would always be with me, and he kept asking me to promise him, I guess initially he was not sure if he could have me in his life. Well, you are right, the best thing for me to do is try to cut off with him, and move on with my own life, no matter how. He will be a cheater again and again, I kept reminding myself " Once a cheater, always a cheater", it also helps me to wake up. One thing I have been feeling guilty about was that I left him for China, as his divorce was so slow, and he still maintained very close with his Ex at that time ( She would visit him 5-6 times a day at work, even they were separated). He told me that all the problem was due to that time period that we were apart, and he felt different when we finally moved back together, but I always thought that true love can overcome that difficulty.. He made me feel guilty, now I am sure that he is trying to use this as an excuse for his affair.
Thanks for all the understanding and great suggestions, I do need that. I know I was wrong to get involved with him in the first place, but I have always been serious and sincere about this relationship, could never expect he would do this to me.. I suspect his new one is also a Chinese woman, as he has told me that he has always been interested in Chinese women, and his EX is Chinese too ( maybe ABC, not from mainland), I just wish she didn't have to go through this as I did. Should I try to talk to her? I guess she wouldn't even listen to me.. ..