Dial L for Love (Sweet Dreams #48)
Marian Woodruff

Mattie Winston's got what most girls at Port Kearney High only dream about: Hank Butterfield, the best-looking, greatest ice hockey player at school. Mattie ought to be happy, but there's something about Hank that makes her nervous -- he's so reserved at school. But at night he turns into a real Romeo -- on the telephone!
Mattie must discover the real Hank before she continues dating him -- and getting those romantic phone calls.