Looking for relationship advice [32F] - feeling a disconnect after several years.

I'm not sure where to begin, but I feel like my marriage is deteriorating, and I have no idea how to repair it. My husband and I, both 32, have been together since high school—essentially half my life. We've navigated so much together: college, our first jobs, moving in together, and getting married. For a long time, I truly believed we were one of those rare couples that would last. But now... I'm at a loss. Our conversations have become minimal, focused only on trivial topics. We ask each other things like, "How was your day?" or "Could you pick up milk on your way home?" Gone are the meaningful dialogues and playful banter we once shared. I'm constantly swamped with work, and by the time I return home, I'm utterly drained. My evenings consist of eating, maybe scrolling through my phone, and then heading to bed. I know my husband feels the distance too; he no longer initiates conversations, reaches for me, or even sits next to me on the couch as he used to. As for intimacy? It's essentially vanished. It seems like he isn't making any effort anymore, which only deepens my sadness because I genuinely love him. The spark just isn't there for me anymore. I can't tell if it's stress or just the realities of life weighing us down, but I long for the days when we craved each other and when he looked at me like I was everything. Now, it feels like we’re simply two people cohabiting, passing by each other as if we were strangers. I don't want to lose him, nor do I want this to mark the beginning of the end. But I feel helpless when it comes to mending something that seems to be slipping away. Has anyone experienced something similar? How can you revitalize a relationship when it feels like it’s fading?