I have a friend who is trying to help constantly, but a lot of the time makes things worse? We're very close, and talk a lot. She is depressed, but is on medication. A lot of the time she /tries/ to do things to help me, but it just doesn't work? She gets frustrated, and I get frustrated in return. I start going off in all sorts of different directions, she gets overwhelmed, shuts down, and then I'm scared of her leaving. 

I have a huge trigger surrounding leaving during fights, because I'm scared that person won't come back. I'm scared if we don't figure it out right away, they'll leave, think about how much better off they are with out me, and then just go forever. So I have a huge anxiety around that. We get in fights about her leaving when shes mad at me, and then I get upset/emotional. She constantly acts like shes /trying/, but just forgets about how I feel, but we've been over this 100 times in the last 3 years.

I don't know what I'm asking.

Is there a way I can more properly express how I feel/how to help me to my friend about my BPD? Cause I tell her, and then she ignores it and acts like she forgot..over and over again.