Seemed to far fetched. He’s a all-business mute who would have not taken so much interest in a woman. And Paulina had just lost her husband, so there should have been mourning
I also feel that there wasn’t enough time for the romance. At the end, Paulina says “I love you” which made me roll my eyes because she hardly knew him.
She made passionate love to him in one scene, which tells me she loved him.
It was a remote area of the Rockies in the Old West and Paulina had just lost her husband. She was grieving and needed companionship, human warmth. The gunfighter Silence comes along as the hero who (she hopes) is going to grant her a sense of justice in the situation and she allows him to sleep in the loft. Within a few days she's in love with this strong, silent type and vice versa. She's a beautiful woman, he's a handsome man and the chemistry was right.
Doesn't sound farfetched to me.
Also keep in mind that things have to be condensed in movies to fit into a 2-hour frame (in this case, 1 hour, 45 minutes), which includes the story arc of romantic relationships.
Yeah, Kinski made for a really 'good' villain. And you can't beat the wintery milieu. It's strange that more Westerns didn't use the setting (no doubt because it's more difficult to shoot scenes in snowy conditions). There are only a handful that I can think of and some of em' only have a wintery scene or two: "Ride the High Country," "Breakheart Pass," "Jeremiah Johnson," "A Man Called Sledge" and "McCabe & Mrs. Miller," along with later ones like "North Star," "The Claim," "Seraphim Falls" and "The Hateful Eight." There are a few of others of course.
Coming back to this topic, I recently listened to a podcast about Corbucci, and someone commented that he had wanted to do a western set in the snow as far back as Django (1966). Everyone had advised him as to the difficulties of that kind of shoot and he decided not to try it in that film. Instead they sprayed water on the dirt to create mud, giving it a look that also isn’t seen often in spaghetti westerns.