Hi LittleBroken and
Glad you found us and felt ready to share what's going on in your life. Isolation from family relationships can happen when your partner struggles with BPD. Often people think if they just give in, that will "finally make the pwBPD happy" when instead, as you're experiencing, no amount of you giving up your family will "make" the pwBPD feel better or different.
What do you think her grievance is about your family? Is it about a specific person ("you know I hate your dad"), about spending time with them in general ("you always spend more time with them than with me"), about jealousy/comparison ("you'll just think I'm horrible after you visit your perfect family" or "you always take their side instead of mine"), or something else?
I'm not saying she's right or accurate about if any of those are going on... I'm more trying to get a sense of how she sees things. It sounds like it's been a long-time pain point between you two, so understanding everyone's perspectives/complaints is important for the two of you to break this
cycle of repetitive argument.
I think I'm tracking with you that you do go see your family anyway? That can be a good thing. It sounds like the bigger issue is how she responds when you get back?
And one last question -- do the two of you have any kids, and if so, how old are they?
Thirteen years is a long relationship; you two definitely didn't get here overnight, so while positive change is very possible, just know it can take a bit of time. There is hope, though, as you learn the new (and often unintuitive) tools and skills here. You can have a more livable relationship
Fill us in on the details, whenever works best for you;
kells76