Velocity by Cassandra Carr!

Blurb:

Paolo D'Allesandro has been content living in his older brother Marco's shadow since they both left Italy for the United States. But he's getting a little older now and realizing he doesn't want the same thing as his brother--to be a professional bull rider. He's never made his own decisions, though, and finds himself having a crisis of confidence.

Savannah Harrington is a grad student working on a thesis. Her topic is adrenaline junkies, and she's joined the bull riders tour for a few weeks to study the men and their motivation behind willingly taking part in a dangerous sport. She meets Paolo on her first day and both feel an immediate pull. Savannah recognizes quickly that Paolo isn't happy, though, and tries to draw him out even as the two of them draw closer physically. She can't stay away from the sexy Italian, but knows the relationship can't last. After all, she's going back to school and he's staying on the bull riding tour to be with his brother while he figures out his next step.

Both Paolo and Savannah wish their circumstances were different, but Paolo doesn't think he has anything to offer Savannah, and Savannah doesn't want to pressure Paolo into another life decision that will make someone else happy, but not fulfill him. As her time to go back to school draws closer, they need to figure out how to get their highest score yet--in the game of love.