Hi, Izara, Jack's hope is eternal where bluebirds sing next to a whisky spring, so he always think his next love is the one. It's the reason for his riding more than bulls in the rodeo circuit, and doing more than tequila shots in Mexico. Jack doesn't need no reason nor encouragement. It gets him into trouble, like with the rodeo clown, and possibly Randall, but he hit gold with Ennis, who loves one and only one, with his whole heart and soul.
That's what I love about Ennis, and Ennis/Jack. One is hope, the other is faith, together their love makes both of them better.