His Country Girl by Jillian Hart ~ 4/5
Here's what www.amazon.com says:
To fulfill a sick boy's wish, rodeo star Tucker Granger surprises little Owen in the hospital. But no one is more surprised than single mother Sierra Baker. She figures the carefree champion for a different kind of man. One who doesn't spend hours talking "cowboy code" with a hospital-bound child. One who can't have her dreaming of a second chance at love. Somehow, Tucker ropes her heart and fills it with hope. Hope that this country girl and her son can lasso the roaming bronc rider into their family forever. --This text refers to the Kindle Edition edition.
Great romance, beautiful story. She was hurt and is afraid to love again. He was a wild cowboy, has a run in with an old school mate and realizes she's the one. Only thing I didn't like is I didn't know this was book 4 in a series!!