*hugs* my thoughts and prayers are with you.
Depression is no laughing matter, as I have said before.
just know this my dear friend, that no matter what, you are you .. you need to be who you need to be. Denying who you need to be for the sake of others, will only result in bad things for you.
I don't want to sound callous regarding your marriage, but, if it needs to end, it needs to end, no matter "whose" fault it may be. If she cannot be happy for you/with you, then perhaps it is the best for you to end it, before it gets to messy.
In a perfect world, those around us we love, would love us no matter what. unfortunately, its not a perfect world, and we must try to navigate the horrors that we find ourselves in. we can only hope and pray that our loved ones will eventually come around and accept us for who we are. There is always that chance. 30 years together is a long time, I am sad to hear that it may end. But you need to do what is right for you, to be happy and complete.
Know that you always have friends here, friends you can talk to online or off.
I hope your appointment helps you quiet that noise.
*hugs*