<human>: Can you give me the gist of the text in a nutshell?

My girlfriend and I with our two year old recently moved into an upstairs condo and the Older lady downstairs has lived there for 3 years with the last 6 months being no neighbors upstairs and the previous years a single older woman. We knew having an old lady downstairs would be an issue so we have always been careful to keep the noise down and only played with our son during reasonable light hours. Our first week we were out on the deck playing catch (at 2 in the afternoon) and she came upstairs asking us to tell our son to keep it down, as she can hear him running back and forth on the deck. I explained to her that he is Two, isn't going to listen to me telling him to keep it down, especially during the middle of the day. She said it wasn't loud, but she could distinctly hear his footsteps back and forth on the deck (understandable) I told her, OK and I would try to keep him from running back and forth. The following 2 months, I was always greeted in the car park by her, and she would ask if we had been home at all that week because it was so quiet, she assumed we were gone. She said this to me at least 3 times which I thought was odd. Then last night around 7pm my girlfriend had 2 other toddlers over and they were excited to get going back home, So they were being a little rowdy and playing, but not stomping around or jumping inside or anything. I got a call for the property manager telling me she didn't want to write us up but we were being unreasonably loud. I said to her that it was still light outside, and that a few toddlers will make noise but it's only been playing for about 20 minutes. I have tried to be reasonable but I feel like if we so much as walk inside our own place during the day it's going to bother her. What can I do?
<bot>: Downstairs lady complains we are loud but during the day and we have a 2 year old? do I just buy her some earplugs?