I haven't cut in seven years and I like you get jealous when I see someone else get cut (although it's almost always been on accident). I just can't help but think, why can't that happen to me. I don't want to go back to doing it to myself so I'm always hoping for an accident. Why won't the knife slip when I'm cutting vegetables, why can't a glass break near my bare foot. I couldn't handle going to visit a friend for a long time since she had a pretty bad accidental cut (required stitches), I felt so much anger towards her because of the jealousy. I wish I could make this easier for you. I would suggest you tell her it's really triggering for you when she shows, and talks about, her cuts, and ask her to not do it around you. (((((hugs)))))