I am sorry for your pain and also for his shame getting in the way of a beautiful relationship. I would send him a loving email and let him know that you love him for him..not what he has or doesn't have and none of that matters. The only thing that matters is the two of you and what you have built together. You understand his pride and will do what you can to support him, except giving up the love between the two of you.
There is no way to know if his pride will allow him to hear it and respond, but I believe always in expressing yourself and he can either come to you or not...but I don't hear that you can move forward without at least expressing how you feel for him and what is truly important
Let me know your thoughts.
I haven't heard back from you but I am here if you need more support. If all good for now, please take a moment to click on the rating tab to rate my support. Thanks so much in advance and I am here if you need me.