I don't like my husband's new founded sisters (they have the same father). He found them Facebook and we just don't get along. I've known him and his maternal sister for 13 years and the one new sister makes it seem as though they were here from the start. We went to her house last weekend and we ended up leaving disgusted (him, his maternal sister and I). I was very nice and having a good time. The whole night his sisters 20 year old daughter kept saying, "but we don't even like her." And saying all these nasty things and would come back to say I'm just joking and why are you in your feelings (it went on and on). To the point the mother (his paternal sister), called me the next day to apologize. All while trying to tell me she has no idea why her daughter said those things. Lastly that was only yhe 3rd time I saw her daughter in person in the last two years. Which to me says she got this from her mother.
Sorry for the long story.