Told my fiancé and girlfriend of three years that i think im trans and after about an hour she told me she wants to split up.

I understand that it’s a lot to put on someone and I understand why she would want to leave but I can’t help but be upset. She’s literally told me like three times that she would still love me if I wanted to be a women and she said that she likes women anyways. I would think that she would at least try and see if it would work. She said that she doesn’t think the kids should be around when I’m going through changes. We have a 3 year old and an 11 year old. I know I have to respect her decision and I do. I just need to vent. I just feel so depressed and discouraged. She was the one who I thought would be the most supportive. I really don’t have anyone else. I literally just want to crawl into a hole and cry right now.