英语短文改错（下面短文中有10处错误.请在有错误的地方增加、删除或修改某个单词）
Dear Andy,
I am an university student.I once thought life at the university is excellent,but now I changed my mind .I have three roommates,and I was the last one move into the dormitory.Last term,we got along peaceful and happily.But I find they are not willing to be with me now.They don't talk with me,and they've become even cold toward me than before.Many time,I wanted to talk with my roommates about that how I felt,but I failed to find an opening.When leaving alone,I always recall this sadness.I am an honest student.Why can I win true friendship?
Yours,
Li Lei