My sister-in-law has announced she is trans and is in therapy to transition successfully. It was actually a relief because it seemed to explain her past self-destructive and self-seeking behavior (casual drug use, picking family fights, and even getting plastered at our wedding). We kept her at a distance from her past behavior but have been making attempts to bridge the gap, including introducing her (while socially distanced) to our infant daughter. The problem is she has taken a derivative of our daughter’s name for her own and has plastered the story across social media that we named our daughter for her (she tagged me in them). This is a complete fabrication and has confused our family and friends. The situation leaves my husband and I baffled and more than a little uncomfortable. In the past, my sister-in-law has been a habitual liar and would invent elaborate fictions and even fight with other people over them—like insisting the family had a dog growing up that a neighbor ran over and whose body she found, which never happened. What should we do here?