not sexually attracted to her

i f18 and my gf (18) have been together for 2 years. i don’t have any sexual attraction to her body, i feel uncomfortable touching her. however i like her touching me sexually. i don’t know if it’s all women in general im just not sexually attracted to or it’s everyone but i’m just confused as to why i like being touched but don’t like touching other people sexually. i love her so much and want to be with her but i’ve told her i’m uncomfortable touching her sexually and she keeps guilting me into doing it or just flat out making my hands touch her. i just don’t know what to do anymore, i feel guilty and like a bad person because i don’t have sexual attraction to her.