Hello all, I broke up with my partner of 9-years for a 6-month period last year. During that time she began seeing/sleeping with a poly woman who was in a committed relationship with a man, and I began dating/sleeping with another woman... I realized I had made a horrible mistake and let my fears control me when I broke up with her, so I reached out to her and we began the process of healing and getting back together. She wants to maintain a friendship with this woman and I feel scared about it...mostly about the "poly" lifestyle wiggling its way into my monogamous relationship. Also, I don't like the woman...I think she's crossed the line with my partner after we moved back in with one another and have been working on our relationship (recently sending my partner a text complimenting her sexual techniques--complete with the tongue emoji). They stopped sleeping with one another...but my partner wants this woman to stay in her life as her friend. This woman reminds me of the horrible mistake I made and I want her gone. Am I being unreasonable wanting to ask my partner to end the friendship? My partner has said it's a non-negotiable and I need to deal with my insecurities. Thank you for your thoughts/insights.