My fiancée, “Nancy”, and I are getting married in December. We’ve been going through a small rough patch since late June, I felt like everything was okay, but we were just out of sync. We’ve been together for 2 years, and this has happened before and we just come out of it usually.

I have a very good relationship with my fiancées twin sister, “Peggy”. We hung out a lot before she introduced me to her sister, so I’ve known her longer and she’s one of my best friends and is probably the person that knows me the best other than my family and Nancy. She and her sister also have a great relationship. No resentment, no anger towards each other just sisterly love.

Saturday I received a string of messages from Peggy that were telling me to not marry Nancy. She told me she didn’t love me like she should and if we got married we’d be in a loveless sexless marriage. I told her I didn’t believe her. She sent me screenshots of messages between her and Nancy. I wish I hadn’t read them. She said that I wasn’t the love of her life, that I wasn’t her soulmate, that’s I was just a good option and would be the a good provider and great dad to her kids, that I was “nice guy that’d any girl would be lucky to have, but he’s not the one for me.”

I asked Peggy why she told me all of this and she said she’s my best friend and she loves me. She said she’s wanted me forever, but couldn’t come between me and her sister like that. She said she’d love me like a wife should, that she fantasizes about being with me intimately, and that I drive her crazy. She asked me to leave Nancy and come be with her.

I’m so confused. I don’t know what to do about anything. I feel like my life had been turned completely upside down. I don’t know where to go from here.