I completly understand your feelings,when I first married my husband my mother-in-law kept pictures of him and his x-wife all over the house. I tried on different occasions to drop hints to her about it, but she never seemed to "pay attention". Finally, my husband confronted her and told her to either get rid of the pics or he would not be coming to see her anymore..it worked!! It is after-all your husbands mom and he really does need to talk to her about the situation. If he truly cares about your feelings he should have no problem doing that for you, but he needs to be serious with her and ready to drop her for a while if needed until she learns to respect his wife.