I was married 18 months when my husband started acting vastly different. It was difficult and we had never heard the words Huntington's Disease. Trust me, it was a real damper. Anti depressants, counseling, support groups, reading and time all come into play when a loved on becomes worse and you have to face the reality of their life and the possibility of it in your future on a personal level. But somehow it all comes together.
Timing is everything.
For some people, reading stories of others who have walked before him in similar shoes might help, while talking to someone else is the key. There are many resources from the HDSA, HSC and others. My website has links to most major sites that can offer support. You might need to talk to someone too and see how best to support your husband. I wish you the best and crying is not a bad thing.