There's such a fine line between being loving and being an enabler. My BPD daughter is also 27 so I understand completely what you're facing. Our worst was around 16-21, luckily it's tapered back some with maturity and getting serious about therapy.
Just know that what I'm about to say comes from a place of love, not judgement...okay?
First, you have to get to work and you have a morning routine. That routine should not include babying your adult daughter who can work from home when she pleases. Just tell her that unless she asks for a ride in the morning, you won't try to pick her up. That also means you don't wake her up, you don't see if she's ready, you don't sit in her driveway....if she needs a ride, she asks once she's ready. If there's enough time, you'll get her on your way. If she messages too late, there's always Uber.
Likewise, if she wants to walk home, let her walk. My kid was notorious for doing the same thing several years ago...she'd run away and walk 5-10 miles to a friend's house in a rage. I used to try stopping her but I eventually realized, why? Let her go cool off since that stops the arguing and the house/car is calm once again. I just wouldn't let it bother me anymore.
For the rages, you also have a right to say, "It's time for you to walk or call Uber." She has a job and she can pay for her own rides if what you provide isn't sufficient. If you just sit there and take her abuse, it teaches that abusing dad is okay and you should do it more often. Is that the point you're trying to get across? If not, then stop just accepting it. If she's abusive, she can find her own way to work and back.
For the silent treatment, that's better than the abusive treatment at least. You should do the same when it becomes to much, when she's too hostile. Let her know that you're taking a break because you're feeling overwhelmed and under-appreciated.
These types of boundaries will become your best friend over time because they will literally save your sanity.




