made for each other

Also, made for one another. Perfectly suited, as in Pat and Peter were just made for each other, or, as Samuel Richardson put it in Clarissa (1751): “Her features are all harmony, and made for one another.” The use of made for in the sense of “fitted for” dates from the late 1100s.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.