"Learning to Breathe" by Karen White

Definitely summer reading. Kind of hokey, but the mystery of who would marry who, and who was whose mother/son/daughter kept me reading until the end.
Main character Brenna. 1) Mother died when she was 6. 2) had a mean father. 3) lost her high school "true love" when he went to college. 4) had four much older sisters who raised her. Ya da, Ya da......

Caused a drought. b