As someone without bpd I want to learn more about it for my friend. What causes an FP to form? Can someone do it intentionally if yes then how can you avoid not doing it accidentally? I know its probably beyond the person's control but precautions still can be taken to help the bpd individual right?

Since having an FP is something unhealthy deep down then toxic behaviours like being not communicative enough or ghosting occasionally can exaggerate it correct?