Original: Astrid 's final home is with Russian immigrant Rena Grushenka . She intentionally chooses Rena over better prospective foster parents because she is devastated by Claire 's death and does not want to become part of a nuclear family .
Simplified: She chooses a home with a Russian mother named Rena , knowing that Rena will not love her like Claire did because she does not want to see this happen again .