We had a similar experience with our I just want to smoke weed and hang with my cat shirt. In my case, it was the other way around. I was the jerk. I was never rude to them but I made no attempts to be friendly either. Fortunately, it didn’t last long and we became fast friends. There was such a huge turnover rate in that house and the neighbors who lived there before were very dear to us and couldn’t stay for reasons behind their control. It felt like they took the house out from under our beloved neighbor on purpose. We had a neighbor like that. For years he was a real jerk to our family.
Of course, I knew that I just want to smoke weed and hang with my cat shirt the case they were just a family buying a house and they had no idea who the previous owners were or what the situation was they were just looking for a home for their family. It may not be a situation of Bad Blood between the previous owners it could be rather that they were very close to the previous owners and they feel upset because the other owners had to leave. If I could say anything it would be to go knock on the door and break the ice and stop the cycle and if you need an excuse to go knock on the door throw your kids ball over the fence or something. Usually, an ice breaker is all that’s needed.