You exist outside of the constructed confines of a binary; so does your love
That's not to say you should immediately dump a partner who doesn't know what your gender means! Not everyone knows what it means to be non-binary, gender nonconforming, demigender, agender, gender fluid, et cetera. And of course, no one knows exactly how you identify until you share it.
Sometimes, it is worth explaining to a loved one. They might be confused or unsure at first. It can get a little miten treffit ovat kuin meksikolaisessa kulttuurissa messy, for example, if you're dating a lesbian who has only been with cis women, and you come to realize you identify as genderfluid, as a demiguy, or gender non-conforming. However, if both of you are willing, and if you feel safe and comfortable with that person learning you and your gender, you can lean into that messiness!
You can lean into your truths. You can create a love that best suits you. Throw the gender roles out the window - or pluck seeds from them and plant them where you choose. Just make sure you are the one who's choosing, that you're not doing anything that doesn't fit you. From who is the little spoon to who pays when, to who carries the child and who is the disciplinarian, to who picks the dinner place and who picks what to watch that night - throw the scripts and expectations out the window.