Conversation so far:
What happens in Act II of Fiddler on the Roof?
In Act II of Fiddler on the Roof, Perchik tells Hodel he must return to Kiev. He proposes marriage and says that he will send for her.
In Fiddler on the Roof, who is Perchik?
In Fiddler on the Roof, Perchik is a student revolutionary who comes to Anatevka and falls in love with Hodel. He leaves for Kiev, is arrested and exiled to Siberia.
In Fiddler on the Roof, who did Perchik send for?
In Fiddler on the Roof, Perchick sent for Hodel, the daughter of Tevye and Golde.
Did Hodel and Perchik get together in Fiddler on the Roof?
In Fiddler on the Roof, Hodel falls in love with Perchik and later joins him in Siberia.

Question: Why did Perchik have to send for Hodel?
Self-contained rewrite: Why did Perchik have to send for Hodel in Fiddler on the Roof?