Hello, Chilli &

Your situation sounds pretty "normal" for a parent of a child with BPD... .Probably all of the members of the Parenting Board will be able to commiserate with you over having to deal with our BPD children lying at times, inventing excuses for their behavior, etc. Unfortunately, this is not unusual; I found that my BPD son would be disingenuous with us all the time (in the past, before being treated for his BPD) when he knew his situations and behaviors would be hurtful to us, or cause us to be angry. His shame over these things would cause his lying to us, usually.
Does your daughter still live with you? Is she in treatment? Therapy? Counseling? How are you coping with the situation? I'm really glad you've found us, Chilli