I was seeing this match on chess.com.
[FEN ""]
[StartPly "18"]
1. e4 e5
2. Nf3 Nc6
3. Bc4 h6
4. O-O d6
5. d3 Bg4
6. c3 a6
7. Nbd2 Nf6
8. Qb3 Qe7
9. Qxb7 Nd8
10. Qb3 Be6
11. Qa4+ Bd7
12. Qc2 g6
13. Nb3 Bg7
14. d4
The White queen had a chance to take the Black rook, but the White queen came back, why?