I just found out my ex died and now I feel nothing for my husband. I think I might still be in love with a dead man.

I (F32) was scrolling Facebook earlier today when I saw a post from a mutual friend. My ex (we were together 6 years, broke up about 4 years ago) passed away suddenly. No details on how, just that he's gone. I stared at the screen for probably 10 minutes before it hit me, and then I just broke. Ugly crying, shaking, the whole thing. My husband walked in and asked what was wrong. I panicked and made up some bullshit excuse about "a friend from work's family member died" or something vague like that. He hugged me, said he was sorry, and went back to whatever he was doing. And I just sat there feeling like the worst person alive. Because the truth is, in that moment, everything I felt for my husband... it just evaporated. Like a switch flipped. I looked at him and felt nothing romantic, nothing warm, just this hollow guilt. We've been married for 2 years, we have a stable life, he's a good man, he doesn't deserve this. But right now I can't even look at him without feeling like I'm betraying him by grieving someone else so hard. I thought I was over my ex. We ended on okay terms not hate, not fireworks, just life pulling us apart. But apparently part of me never really let go. The memories keep flooding back: the way he laughed at my stupid jokes, the late night talks, the plans we made that never happened. And now he's gone forever, and I can't even say goodbye properly. Am I still in love with him? Or is this just shock + unresolved grief + nostalgia hitting at the worst possible time? I don't know how to process any of it without blowing up my marriage. I feel so guilty for crying over someone who isn't my husband, for lying to his face, for suddenly questioning everything. I don't know what I'm confessing here exactly maybe that I'm a shitty wife right now, or that I've been lying to myself about being "over it" for years. I just needed to get this out somewhere because I can't tell anyone in real life