The code is: 12 11 2 8 3 11 13 10 7 3 4 18 20 1 10 8 3 10 15 6 9 13 4 18 11 Key: A-6 B-12 C-26 D-7 E-11 F-14 G-17
H-16 I-4 J-22 K-20 L-9 M N-18 O-10 P-23 Q-25 R-3 S-2 T-13 U-8 V-15 W-19 X-21 Y-1 Z-24 I wonder what she is trying to tell me, it must be important!