My dog is struggling to consistently relieve herself in a timely manner.

Hi folks. I just got done trying to get my dog to do her business after whining to go out about 45 minutes ago. She peed, started to do her poop dance, then changed her mind. I tried getting her excited to go as someone suggested on another thread (basically just doing an excited voice, moving around a bit). We were out in the cold and wind for most of that 45 minutes and were unsuccessful. I know she needs to poop but she just won't. I'll give as many details as might be relevant.

She's done this since she was a puppy. At our old apartment, dogs were allowed to go in the grass so we'd walk her around and she'd always pick this one bush to use. I asked my vet about that and she said sometimes dogs are all anxious around bathroom habits and it's okay. Fair enough. But often we would take her out and she wouldn't do anything. Since we've moved, it's a different place but same game. This apartment has a dog run. No other dog in the complex takes as long as she does to do their business.

I know she does have to go because she runs along the fence, does a dance, and poops in the corner. The problem is that she'll get all queued up, do her dance, and then stop. Sometimes it's to stare into space, sometimes she comes running back to me there's no rhyme or reason.

Walking does help and she will often poop after a walk. Idk how she knows that she's not supposed to go in the grass here but we didn't even have to train her on that. We'll walk her around the neighborhood, come back, and she goes. It's just not practical for me to walk her every time she needs to go out. Sometimes I am working from home and need to get back to work, sometimes, like now, it's the middle of the night and it's just not safe to be walking her dog. When she does do her business, she gets a treat.

I don't expect her to poop and pee every time she goes out, I know that's both unreasonable and probably an indication of a problem. I'm only concerned about when she shows signs that she needs to, it's been several hours since she last pooped, and she chickens out. I also don't expect an exact routine. I'm not using the restroom at the same time every day so why would I expect her to? When she does go consistently, she'll usually go out around 4 times a day. Twice to pee, twice to do both, but we'll take her out more or less based on her indications. We do let her cue us that she needs to go out and typically she'll whine when we get up, mid day, mid afternoon, before bed, and sometimes at night. If we take her out when she doesn't ask, I don't get upset at her if she doesn't do anything, though my husband kind of does. He doesn't punish her, just rants about it.

Just to reiterate my concern: what can I do when she indicates she needs to poop but stops and refuses to go?