I realized I needed to text her that I had something I wanted to bring up about myself. Nothing I thought was bad or anything but told her I needed to text her to keep from chickening out.
So when we were able to talk, I broke down into tears and said "I think I might be trans"
And in an effort to save our marriage and family I needed to be 100% honest with her about my feelings and I needed that in return from her. Even if that means she was struggling to cope.
Again, we have been talking about it from when we wake up to when we go to sleep. Recontextualizing our entire relationship (been together for 15+ years and have a 15mo)
I have found it really affirming to hear her bring up some instances and behaviors in the past that now make total sense to her. I haven't felt this close to her in years and she's willing to support me even though the future for us is kind of uncertain.
She told me this morning I was practically glowing and she could see this massive weight lifted off of me. She told me she missed me so much and is glad to have me back.
I can't say that is how your partner will react and it's still not smooth sailing but keeping the communication going is crucial.
Good luck friend! I'm rooting for you and am here if you wanna talk. I'm new to all of this myself, but I hate the feeling of not knowing who I could talk to in my life about these things.