For context, I am a bisexual woman in my late thirties and he is a gay man in his mid forties.
He's always struggled with his sexuality due to homophobic parents and wider family being generally unsupportive. When we first met he told me he was straight, and only "came out" to me after a few years.
We've always been very close; there's never been any indication of him thinking he's a woman before, however, now he's saying that he's just realised he's always been a woman and was suppressing it due to his upbringing. Both of his parents have recently passed away.
I'm trying to be gentle with him, as I love him dearly.
Does anyone have any advice in terms of what to say/ how to react to this?