How can I deal with this problem?

My boyfriend and I live together for almost 2 years. I love my boyfriend very much and feel truly connected to him on many levels.Despite the warmth and tenderness we share, our relationship is tortured by his frequent bouts of jealousy. I am deeply committed to my boyfriend and do not entice the attention of other men. However, he becomes abnormally agitated any time I look at member of the opposite . He always thinks I am "staring at"or"checking out" other men.This very often causes fights between us.How can I deal with this problem?