made for each other

adjective2

1. •
   Well suited to be in a relationship with one another, especially as romantic or marital partners.

   • "I half-believe matches are made in Heaven—ours will be Heaven-made, if any are. You think human beings are made for each other, as the saying is, do you not?" — 1856
2. •
   Compatible; interacting effectively; in a complementary relationship.

   • Sir Georg Solti and the Chicago Symphony Orchestra may have been made for each other, but they were also made to play Beethoven. — 1975