Our 3 year old housetrained dog started doing the same thing. Even though he was neutered, the vet said it was most likely urine marking. We used an enyzyme spray in the 2 spots he liked to pee and then we put a pee post hydrant on a pee pad. This gave him somewhere to mark. then we moved them both outside. When we did he stopped peeing inside and only looked to mark his new spot when we brought him outside. Here’s a good article with some tips on how to use them: http://www.smartdogguide.com/a-dog-fire-hydrant-potty-is-your-lawns-best-friend/ Hope this helps!

I’ve had the same issue with 2 of mine. I think its a breed trait haha or at least the stubborness part. My current bull terrier hates to walk going anywhere and will walk behind me extra slow. However the moment we switched directions to go back home he goes out in front and pulls his way home trotting the whole time.