2 J Birds,
She went from having dinner with us in a very very nice conversation to going up stairs and swearing at me and throwing the curling iron stating she is not walking and its my fault cause I didn't turn on the curling iron to sewing up a pair of ripped jeans with a tapestry needle, to fabricating the story about the group photo and how the principal said they had to be dressed and she didn't have those clothes to opening gifts with a big smile to crawling into bed naked 10 minutes before we had to leave crying her eyes out that she was not walking, yelling at me for not picking out her clothes, so I pick out 3 outfits and get sworn at for going through her clothes and telling her what to wear...
Sometimes I wish we had film of stuff like "the above" to show people what BPD and being disregulated looks like. That description of yours is SPOT ON! Having lived through similar (oh so similar) I can
Sure can commiserate.