Throwaway682

me and my girlfriend of 7 months were messing with eachother and calling eachother random names. i called her a cow without even thinking and immediately freaked out. she’s bulimic. i could tell she was hurt and it killed me. i shut down and tried telling her over and over again how i didn’t mean it but she just brushed it off. how do i convince her that i didn’t mean it? is my relationship ruined?