Hey Battlin Business Owner,
Thank you so much for opening up to us about your situation. I may be able to offer some advice, or at least another perspective to consider.
Non-binary is a really interesting strand of the gender spectrum, I think. I remember when I first learned about the term, I would've been about 14 years old, and one of my classmates had just come out as agender. I began to look into gender non-conforming identities out of curiosity, because I couldn't quite comprehend the idea of gender being a spectrum. After much research and surrounding myself with more members of the LGBTQIA+ community since, I've come around to the idea of the gender spectrum and now quite enjoy learning about different identities within it.
Your words, "how can it not be about me as well?" make sense to me. The whole experience of coming out is highly individual and complex for not only the person who is coming out, but also for the people around them too. With people who identify as trans or non-binary in particular, coming out can induce a variety of lifestyle changes and adjustments for people. I would attribute this to our society's socially (and culturally) defined gender roles and stereotypes that can outwardly or even subconsciously dictate our interactions with people.
I would like to draw upon an example from pop culture here. Kris Jenner was married to Caitlin Jenner before she publicly came out as transgender. Kris is, to my knowledge, heterosexual. Although she still has much love and respect for Caitlin, her sexuality is dictated by gender preference, and thus she felt that remaining in that marriage wouldn't be true to her identity.
I would highly recommend open communication between you and your wife about this situation. You can talk to your wife about her experience of coming out - how she's come to realise her identity, what her preferred pronouns are, etc. It may be a good idea to get some insight into her perspective and how she's feeling. This could help you with your feelings, too.
Of course, on the flip side, it is also important to consider your own fundamental needs, boundaries, and wishes in the relationship. It's okay to have sexual preferences, that's the nature of sexuality. I would recommend establishing whether your wife being non-binary introduces for you a level of discomfort, dysphoria, or misalignment with your sexuality.
Please feel free to continue chatting with us, we'd love to hear more from you.
All the best, SB