My girlfriend says i raped her
last night me and my girlfriend went to a party and we both drank, we we're both pretty ****ed up. so after the party we went back to her place and we started talking . we get in and we start kissing each other. next thing i know we are having sex, things are going good at first, she is moaning and wet. after a while i have a hard time cumming and in my drunken state i tell her i can cum but she is telling me to stop. i keep telling her i can finish but she tells me to stop like 3 times cause it's starting to hurt. eventually i do cum. we are getting dressed and she says to me "why did you rape me?" and i keep telling her "i'm sorry, i don't know why i didn't stop" (i usually do stop when i am sober cause i want to make sure she isn't hurt). so we go back and forth i'm apologizing but in the end she tells me to go and so i go back home.
me and my girlfriend had just officially got back together like a day before and she told me that she loved me and she missed being my girlfriend. i'm a good guy and i love this girl with all my heart. i do treat her with respect and kindness. i feel so bad about what had happened i'm so scared of losing her again. what should i do?