Some people say he’s bull headed, but I like him.

The words are an expression that is sometimes used when describing a person who is stubborn, or who seems to be unwilling to accept any viewpoints other than his or her own. 

[大家都說他很難搞，不過我卻很喜歡他。]

本句中 bull headed 用來形容固執不知變通的人，不能接受他人的意見。