M.S.
Wow I had a problem like that once. A friend that I considered a sister started causing problems between me and my then boyfriend. I was a single parent at the time with a little girl at home. My best friend's daughter was my daughters friend as well. Well I did what I could to keep the situation out of the kids path and talked to my friend to try to find out what was going on in her head. Do you know she finally told me that she had dated this exact same guy in the past and she felt he had been a user and since she loved me she was afraid he was going to hurt me. I was stunned. I asked her to stay out of it but also gave her hugs and asked her to let me check it out for myself. I began to pay attention and discovered he was also chasing several other women at the same time and just trying to have his way regularly. My friend was right but wrong to try to control my situation. I told her so and then asked that we remain close. We have and she minds her personal business and I mind mine. We share other things (like work stuff, or fun stuff).