just look at it this way, hes chosen you, and even though he visits these sites hes still with you. sit down and talk to him about it, if he understands and stops then good if not then look at it another way, as louabelle said he is looking at asian women, who he finds attractive which means he would find you attractive because you are also worried.

this problem may not go away too easily. i myself had to deal with it when my girlfriend regularly went to a male strip joint, i couldnt face it because i felt that i would be seen as inferior to the strippers, we've sorted it out now. i accept her going to the strip joint on like special occasions which she does now, but she has to give me a night of sex afterwards