How Can I set boundaries with ex gf/friend who has BPD, i tired of being her bail out, with money,walking her dog, clean the house etc

I want to join Ripped Heart in welcoming you.
The issues you indicate you are having trouble with are quite common. We have good success pointing people like yourself in the right direction.
I agreed with Ripped... .a little more detail will help. Maybe pick a time where you bailed her out with one of the issues... .and go into detail on how that went.