<human>: We met 3 months ago and started hanging out. We both said we weren't interested in a relationship.

The first month we saw each other a few times and had sex about the 5th time. After that we started hanging out a lot more and our conversations got more serious and we opened up to each other about our past, secrets, etc. She was spending almost all her free time with me. 

After a couple weeks of this she asked me if I wanted to be monogamist. In the moment I said I did and she said okay.( I felt pressure and I wasn't sure)

Soon after that she was at this guys(we'll call him Joe) house whom she has slept with before. She told me that if she had not said okay to us being monogamist she would have slept with Joe then. She also said that she didn't want to be monogamist and I agreed.

She said we should make some rules. I told her I simply didn't want to know, she didn't like that and said it's important to her to be open about sex. She said that Joe wants to know the important aka repeats. I said just tell me that you did it and the first name( because she apparently wants to tell me first names).

Lately we've been hanging out but not having sex. This weekend she is going to have sex with Joe and another guy. This bothers me for a few reasons. We talked about it but I still have some things to say. I tried writing down my thoughts but I have not been happy with what I've got. ( I'm not good at organizing my thoughts so that others can understand me).

Summarize the given text in a few sentences.
<bot>: She is going to have sex with 2 different people this weekend and I am having trouble telling her my issues. Can you help me organize my thoughts so I can talk to her?