I pretended to be Jewish to join this organization at my university called Hillel. This organization has great networking opportunities and sends you on a free trip to Israel which is exactly why I joined. I've become fond of the Jews at the organization and consider many of them my friends. One girl in particular has feelings for me, and I like her too.

I went to her dorm room and she began stripping off. I just walked out and left without saying anything. I am not circumcised and didn't know how I'd explain it to her. She texted me a few times to ask if I was grossed out by her. I don't know what to tell her. I don't want her to know I'm not actually Jewish, and if she sees my penis, she will know that I was just exploiting the Hillel organization. Simultaneously, I don't want to stop talking to her permanently and ruin the friendship. What should I do?