I feel like I just blew up my marriage

Hi I’m new here but I’m really looking for some support or help.
I (29F) just told my husband (39M) that I think I’m bisexual. His response was not what I was expecting. I tried to make sure he knew it doesn’t change anything (bc it doesn’t for me). We’ve been married 3 years now. He’s very upset which I figured is normal but he’s questioning everything. Questioning our marriage, if he’s enough.
I told him after we had a fight which I know wasn’t good timing. But my heart was pounding and it felt like something I needed to get out of me. I’ve been irritable and taking it out on him (I’m a nursing student finishing up this year) and I don’t want to feel like this anymore.

I feel like I ruined everything. He says he doesn’t want to hear it and that this combined with how he feels treated some days makes him feel like he’s not enough and that o don’t want to be here but that’s not the truth at all. He’s my person and I don’t want to lose him over this.
Now I’m kicking myself. None of this changes things and it doesn’t matter so I should have kept my mouth shut.
Tl;dr
I don’t know what to do now. I need some advice. How do I fix this?