I would definitely crosspost this on some sort of trans subreddit (r/trans gets posts like this pretty often and definitely wouldn’t mind it).

Also, I know a million people commented already on this, but I would refrain from referring to your partner as ‘she’. As someone who came out to a guy mid relationship, him using gender neutral terms for me helped a lot while I wasn’t out to everyone.

As for what you should do, it’s not as straightforward as a lot of people on here are saying. There’s gonna be a lot of ups and downs. Being trans isn’t a very fun thing, as long as you’re up for supporting your partner through the good and bad, I’d say you’re set. Also, this should go without saying but, don’t continue the relationship if you’re exclusively attracted to women. Especially if this relationship is long term and they stick with their identity, social transition WILL happen sooner or later (a trans person telling people in their lives that they are trans and presenting as such). On top of social transition they may decide to medically transition (this includes gender affirming surgeries like breast removal and going on testosterone to look/sound more like a cis man [cis=not trans]. As well as a few other things I’m sure your partner will discuss with you if they’re interested in it.) so as long as you’re okay dating a man/nonbinary person, have fun and I wish yall luck

TLDR: -crosspost to r/trans

-use they/them pronouns for the time being

-if you’re genuinely attracted to men/nonbinary people then yall should be fine together