My husband came out to me

So my husband has always switched between how he dresses. Some days he will dress very masculine and others he dress more towards the feminine side. Everyone always told me he's gay or he has to be gay but how I see it, until he tells me, or I have actual proof he's attracted to men, then I'll just listen to whatever sexuality he tells me. I've also never had a problem with how he dresses. If he decides to wear camo and combat boots I'm fine with that. If he decides he wants to look more feminine and wear make up, great! It's whatever. Today he came out to me as non-binary. Plz if you're just gonna leave a mean or judgmental comment plz just skip through this. I'm looking for actual advice and understanding. I'm supportive but I just don't completely understand and I was worried asking too many questions would make me not seem supportive. First off he no longer wants to go by his first name. He wants to go by his middle name which is unisex(Skylar). And I'm still working on understand the they/them pronouns, but how do you refer to a non-binary person as your partner? Like do I still call him my husband? Also what do I tell my family. I don't mean that on a "Oh my God what am I supposed to tell my family!" Type of a way, just actually what do I tell my family so my husband isn't uncomfortable. I'm still learning about all the pronouns stuff and I really am trying!

Edit: I understand this comment wasn't meant to be rude and just make sure that this is what I want, but 1. My husband wasn't lying to me. It just took them a while to really know who they were, 2. This post wasn't about that so what you commented was irrelevant to my question, and 3. You also kind of just assumed I was straight... I'm pansexual. I date some regardless if their gender identity. I may have understood why you commented this is I made this post specifically saying I was having trouble excepting this but that wasn't what this post was about. You kind of just assumed I may have an issue with this and also assumed my sexuality because nowhere in here did I even say I was straight. Sure I'm still learning about everything with gender and pronouns but my husband is still the exact same person. They just have different pronouns. I appreciate your concern... Just kinda of confused on where in my post made it seem like I was only staying because I didn't want to seem like an asshole or something.