It sounds like your wife & you are happy. 
I'm glad you're under the care of your wife & the Dr. 
I am ignorant of anything surrounding an orchiectomy. 
Can you continue to grow breasts, without having testicles? 
I've seen results of eunuch erections, but they have had
testosterone injections. I'm curious what your wife's 
plans are? It's an interesting path she's chosen for you. 
I hope you continue to share the results of her decisions. 

Best of luck to you both. Congratulations!