Understand it might be hard for her at first even if she's very supportive of trans people. You've had years to process these feelings, you can't necessarily expect her to me able to process everything herself right away. It might have implications for her own sexuality, the future she imagined together with you, etc.
My partner and I are going through similar things. It's still hard sometimes but we're both really trying to make things work, so I have hope it'll all work out. Open and honest communication is very important.
One thing we've had to work on is including each other in our processing, instead of one of us doing processing on these things and then presenting it all at once to the other.
Understand it might be hard for her at first even if she's very supportive of trans people. You've had years to process these feelings, you can't necessarily expect her to me able to process everything herself right away. It might have implications for her own sexuality, the future she imagined together with you, etc.
My partner and I are going through similar things. It's still hard sometimes but we're both really trying to make things work, so I have hope it'll all work out. Open and honest communication is very important.
One thing we've had to work on is including each other in our processing, instead of one of us doing processing on these things and then presenting it all at once to the other.