Storm, river rescue, night in cabin, rustlers...
That enough?
The Blue Roan by Harddaysknight
or
Wagons Ho! by Lazlong
https://storiesonline.net/s/44905:32942/wagons-ho-chapter-1
Both have romance, rustlers, and river rescue.
https://storiesonline.net/s/17033/the-blue-roan
Let's see if I can post this correctly this time!