Taka : I saw the same in my own experience, and then started wondering why the commonly accepted assumption is that "almost no marriages survive." I figured my experience was unusual, but I'm delighted to find out the naysayers and pessimists who talked to me were *wrong.* Also, supposedly the general cis population's divorce rate is around 40-50%; there are issues with how that's calculated, but if it's even roughly true, a trans person's odds aren't much worse.
OlderTG : Good luck!! You can read back through my posts for suggestions on how to come out to an SO, but my biggest recommendation is to remember that this is all a shock and give her time to process. Don't take it personally if she says some awful things in the first moments of horror, and always, always keep the lines of communication open and take her needs into account. Feel free to suggest she come here, too, and to pass along that someone else who's been there is thinking of her. 🙂 I'm so glad the timing of this post was helpful for you!