He chose her.

Once upon a time you went to Montana. The Deep depths of it too. He went to Montana looking for your brother you didn't know you had. Same dad different moms. And after you had just lost your mother he would be the only family you had left. You found him on the grounds of Yellowstone Ranch going by the name Rip. He was shocked when he found out about you but took you in nonetheless and so you started working on Yellowstone alongside him. Yellowstone had its own family, the Duttons. And let's just say you had a thing for their youngest boy, Kayce Dutton. But you always thought he would never notice you, you were a bigger girl a cowgirl through and through.

And when a skinny pretty thing like Monica came along, you were sure you had no chance. Somewhere along the line, you felt you didn't belong, and you left. But now 8 years have passed, and you had fallen on some rough times living in your car battered and bruised at times. So you came back home to Yellowstone to your brother looking for work. And of course John Being John, knowing you since you were a bitty thing, gave you work. Working the ranch one day, you saw him. Kayce. With a little boy who looked a lot like him. He had a son of course he had a son, and it wasn't your business. But your brother gave you this look. "What?" You said in annoyance.