Can emotional distance be unlearned?

We’ve been together for two years, and I still feel like I’m reaching for something he can’t give. He’s not rude or cold, just... quiet. Like when I’m upset, he sits beside me but doesn’t touch my hand or say anything. I asked once, and he said, “In my family, we don’t talk about feelings.” Actually, that makes sense — his parents barely look at each other, let alone hug. But it hurts. I don’t want big grand gestures, just a little warmth once in a while. Sometimes I wonder if I’m asking too much. Or maybe he just can’t change? I’ve tried talking, even suggested we read something together… but he shuts down. I love him, but I’m tired of feeling lonely in his presence. Is affection something you can teach someone, or is it just... gone? 🤦 My family already asks when we’ll get engaged. They don’t get why I’m hesitating. But how do you build a marriage on silence?