Is it common for enough never being enough for a pwBPD?

[Beware of Junk Psychology...]

This is something my ex’s sister has said repeatedly about her, enough is never enough, she is never happy with what she has got.

Now this statement is true for pretty much every aspect of her life. From a relationship point of view, even though we would go out to restaurants quite often, it was never often enough. Not enough holidays. Not enough of me telling her I loved her, even though I’d tell her every day, or that she didn’t feel loved enough.

Not just the relationship. Businesses’ as well. She opened one business, but that wasn’t enough so she wanted another branch of that business. When a shop next door to the first business became vacant, she wanted that as well to open a completely different business. And then a local pub became vacant, she had ideas about taking that on too until I put my foot down.

Then there is stuff. We had a car, a saloon car. A fast car because she likes the thrill of driving fast. Because we have dogs, that wasn’t enough so we needed an estate car (or station wagon for you folks in the US) to carry the dogs in. And because over here we have a weeks sunshine a year, she needed a convertible as well. She also had another convertible classic car I bought her because she thought she deserved it. Not just cars, furniture as well. We lived, I live, in a small two bed semi. We had, I think, about six couches. Not enough room for them so three were in storage but still. I even had to build two extensions on our property just because the amount of furniture she would buy meant we didn’t have the room for it.

Food. The amount of food she would buy and end up throwing away, with refuse bins overflowing every week.

But the reason I’m posting this is the dogs. We have three. The last one we got about 3 months before we split up, but in those three months she was still looking online at adverts for puppies.
We were offered that puppies sister as well but I again put my foot down and said no, which is a good thing as that puppy ended up dying within a year from a heart condition. She rented a house for a year post breakup, and we shared looking after the dogs so we would each have them for half of the week. Then she moved in with her boyfriend, but would still come round three or four times a week to take them out. Then, last December she went about a month without seeing them at all. Since then she has seen them once a week for the last couple of weeks. I’d started to wonder why, as they were one of the most important things in her life. Yesterday I bumped into my brother in law (ex’s sisters husband) and he invited me round for coffee. It cropped up during conversation that she has now gone out and got two more puppies.

So is this behaviour common? And what drives it?

[Rowdy]

This is something my ex’s sister has said repeatedly about her, enough is never enough, she is never happy with what she has got.

Now this statement is true for pretty much every aspect of her life. From a relationship point of view, even though we would go out to restaurants quite often, it was never often enough. Not enough holidays. Not enough of me telling her I loved her, even though I’d tell her every day, or that she didn’t feel loved enough.

Not just the relationship. Businesses’ as well. She opened one business, but that wasn’t enough so she wanted another branch of that business. When a shop next door to the first business became vacant, she wanted that as well to open a completely different business. And then a local pub became vacant, she had ideas about taking that on too until I put my foot down.

Then there is stuff. We had a car, a saloon car. A fast car because she likes the thrill of driving fast. Because we have dogs, that wasn’t enough so we needed an estate car (or station wagon for you folks in the US) to carry the dogs in. And because over here we have a weeks sunshine a year, she needed a convertible as well. She also had another convertible classic car I bought her because she thought she deserved it. Not just cars, furniture as well. We lived, I live, in a small two bed semi. We had, I think, about six couches. Not enough room for them so three were in storage but still. I even had to build two extensions on our property just because the amount of furniture she would buy meant we didn’t have the room for it.

Food. The amount of food she would buy and end up throwing away, with refuse bins overflowing every week.

But the reason I’m posting this is the dogs. We have three. The last one we got about 3 months before we split up, but in those three months she was still looking online at adverts for puppies.
We were offered that puppies sister as well but I again put my foot down and said no, which is a good thing as that puppy ended up dying within a year from a heart condition. She rented a house for a year post breakup, and we shared looking after the dogs so we would each have them for half of the week. Then she moved in with her boyfriend, but would still come round three or four times a week to take them out. Then, last December she went about a month without seeing them at all. Since then she has seen them once a week for the last couple of weeks. I’d started to wonder why, as they were one of the most important things in her life. Yesterday I bumped into my brother in law (ex’s sisters husband) and he invited me round for coffee. It cropped up during conversation that she has now gone out and got two more puppies.

So is this behaviour common? And what drives it?