This problem is believed to be a headache for many men in the family. If your wife is very easy to accept new things, then it will be much simpler. If it is another, then you should consider how to let the other half accept the matter.
I give the following suggestions. You can start with the simplest sex toys and try to get your other half in contact. If you don't have a big dislike, then you are not far from success.
Of course, there is a big conflict. I suggest you give up this. If you feel that your other half can't accept this, I don't think you can accept all of your things because it is your other half. Otherwise, how can this world be? 'Divorce'?
Secondly, you and her have a face-to-face exchange, telling why you want to use a sex doll, I hope she can accept it, of course, can not accept and understand.
As long as you are sincere, I believe that your other half will understand you, but remember that if you want to keep you together, don't stick to it. This is my last advice.
I hope the above will help you, of course, I also sincerely introduce a sex doll store: Racyme