If he knew he had these feelings before you married and did not disclose them that is an impediment to a valid marriage. I would seek an annulment, you absolutely have criteria for it -but you must divorce first. Do not not sacrifice your future children. This man knew these things and told you nothing. Why on earth would he put another woman through this after he already created one broken family?
Yes, unfortunately I agree. He married you under false, fraudulent pretenses, without full disclosure of this struggle. If you married a man, and now that man thinks he is a woman, that to me, is a
completely legitimate reason to invalidate a marriage (after all the Catholic Church champions heterosexual marriage right?), and to my knowledge the CC will grant an annulment in these circumstances.
I will not even begin to attempt to understand how you feel. It must be immense and I am very sorry. But this is the type of thing in which you must cut your losses and move on.
Think of the rest of your life, and your future family. Don’t let the rest of your life be destroyed because of this.
This is incredibly heartbreaking, but **you should find a sense of freedom in the fact that your marriage is now invalid. As a result, you have no further moral obligation with this man. **
The people of CAF, Catholic or not, will help you move on.
Please do not be afraid to talk to your church about this. Any true church would be understanding and not condemning. Any pastor or priest should be aware of how much trouble there is in this world, and many have “been there and done that” before being pastors or priests–they are not as naive and sheltered as you think. I know that in Protestantism, many churches hire pastors who have had very troubled pasts (even former gang members), because troubled people understand the world better than sheltered people. I’m sure that at least some Catholic priests have troubled pasts.
Unfortunately, there is no treatment for transgenderism, but that is because transgenderism is not a disease; it is a normal trait for a small percentage of people. Coptic is in a small minority among doctors with respect to this issue. As you know, most of the medical field disagrees with him, and I believe rightfully so.