I am extremely envious of my future sister-in-law and I am having a very difficult time coming to terms with her presence in our family. I have been married to my husband for one year, but have been dating him for the past eight. During that time I became very close to his three (single) brothers and mother. I was "the daughter", the special female in the family. I invested so much in the relationships- emotionally, financially, etc. I felt so important and appreciated. Just recently, the eldest son in the family announced his engagement to a girl 13 years his junior who he has known for 6 months and who the family has only met once at Christmas this past year. I immediately felt threatened and all sorts of insecure feelings surfaced (ones, I might add, that I have been working very hard for years to deal with-through therapy and most recently with a low dose of Zoloft, which helped immensely). Despite this raging jealousy, I wanted to welcome her to the family and demonstrate to myself that I wasn't totally out of control, so I immediately sent her some flowers and a lovely note. She responded kindly. I have absolutely no reason to dislike her! The poor thing just wants to be part of the family. But I am struggling so with my own feelings of jealousy, envy, low self-esteem, and general insecurity that I am afraid that I will drive a wedge between myself and the family that I love so much. My husband says that I am behaving very badly and that I should get a handle on my emotions and move forward. I know he's right, but on nights like this when I am alone and feeling so poorly, I just can't quite come to grips with myself. I should add that I have a great family of my own- a mother and father and brother. I really don't know why this new woman is bothering me so much, but my reaction is so strong and is interferring with all of the hard work that I have done in therapy for years and I'm afraid the medicine isn't working or something. Any insights would be greatly appreciated. Thank you in advance for your thoughts.