First time lurker here,

I've already been on this sub for some time, but I want to ask you for some advice.
I don't have bpd myself but my girlfriend has the quiet bpd. We've been in a relationship for more than half a year now, but now we're in a long distance relationship. 
Ever since her situation has quiet deteriorated, as she does not really have support left (for reasons I want to keep private).
Even though I'm trying to do my best, it is difficult to reach out via text but we (especially I) want to keep going, as I really love her and want to support her in any way that I can.
For this I'm asking you for advice what I can do, even with the limited support that I have. 
I'm not quite sure what to write as well, so I'm sorry if it's a bit vague. 

Thanks in advance!