Love Again by Kathryn Kelly

Twenty years ago, Claire Worthington gave her heart to her high school boyfriend. She thought it would be forever. But when he joined the Air Force, he disappeared from her life. No calls. No letters. But when the newly divorced fund raiser and gallery owner discovers her old love is her daughter’s new college professor, all the old hopes and fears come flooding back.
Grayson Moore called. He wrote. But twenty years ago, the woman he loved cut him out of her life. With his career working pararescue in the Air Force over, Grayson is now a college professor of psychology. The last woman he expects to see is the one woman who broke his heart.
Then Claire discovers Grayson’s only in Los Angeles temporarily. Will he love her and leave her all over again? Is it worth risking her heart a second time to love again?