I tried to let my husband know that I still loved him and did not want the difference in beliefs to come between us. It is very difficult though because of the loss of friends and social structure that we had for decades.
I think one of the biggest issues was the question of whether I would walk away from him as I did the religion. You have to separate the marriage from the religion. It is important to calm any suspicions your mate may have.
My husband left shortly after I quit going too. He just didn't want to go to the meetings alone. My children are grown, but they have become more distant because we no longer attend. Most of my husband's beliefs have stayed along witness lines, but I was thrilled to hear him say, "I don't know what I believe", the other day. Might not sound like much, but it's a huge statement for a jw.