Love Remotely by S.E. Roberts

At the age of seventeen Mackenzie found love, but the pain of her past kept her from moving forward with Kyle. She’s never forgiven herself for letting him go, but how can you be with someone when you’re scared you’ll hurt them?
Old wounds are quickly reopened when she flies across the country to see her mother. Things don’t turn out how she hopes, but with the help of her best friend, the love of her life finds her again… if only she will let him in.