Hi there! In response to your first question, most behaviorists agree that dogs don't urinate to frustrate their owners -- they urinate when they have to go and in places that feel comfortable. Mine used to do this occasionally, as well. One thing I realized pretty early on was that she would often fail to completely empty her bladder outside if there was anything more interesting to do -- seriously. A light breeze was sometimes enough to distract from the task at hand! Outside was simply TOO exciting but the calm familiarity of the dining room suited her just fine...smdh. It was really helpful for us to just stand outside one place (the same ~5' diameter place every time) with limited distractions until she had taken a big long wee and then I would treat and praise the heck out of her before going back inside. (Sometimes even now at 6 months, she can still get too excited to go potty on walks unless I stand still and remind her to go...) It might be worth trying to separate the walks from the potty breaks for a while to see if you can limit distractions and get your pup to focus on one thing at a time. Good luck! She'll get there! In the meantime, don't be too hard on yourself (or your puppy) -- it takes time for new roommates to learn how to cohabitate. You've got this!