Their relationship is so good. Sanji was kind to Pudding despite all she did to him. And that act of kindness changed Pudding. It was the first time someone ever loved her for who she was. That was all it took for her to turn around.
You know, Hancock's usually so composed, she always looks so cute when she's flustered (which is most of the time she talks to Luffy, no wonder people ship this).
Hancock gooning to Luffy ✅