Sharing Our Innermost Thoughts

Hi! I told was told by my girlfriend that I’m not kind and sweet. Is that okay? I feel I’m doing a lot for her. I drive her to places, date her, buy her jewelry and food, spend time, talk to her everyday, hug everytime i get the chance. And yet I am not kind and sweet. What do you guys think? I feel under appreciated. I asked her what is kind and she said she’s feeling that I’m just not. I’m also afraid if that’s the case, I am not good enough for her.