I live with a live-in landlady. I was away at home during the pandemic and on my return I discovered that not only had she been furloughed (so no need for time-keeping), she had also moved in her boyfriend who seems to be nocturnal and goes to bed around 4am. I know this as it's a small flat, he has the horrible habit of keeping all house lights on and he's not particularly quiet or considerate either. I know this bothers me, but I'm even more worried for the dog. It feels like an entirely different pet is living with me now compared to three months ago.
The dog seems to like him in general, but I've noticed changes in his behaviour since I've been back. Before I left he was very active during day time, always wanted to play, always in the way, and when I'd finish night shifts, he'd look at me disapprovingly when I'd pop to the kitchen to put my stuff away. He now tends to sleep most of the day. He's taken on walks and sometimes he seems to want to play, but nothing compared to before. You couldn't get through a single meal without a ball being handed to you or your toes being attacked. This rarely happens now.
I can hear the boyfriend playing with him at 2am. When the landlady isn't there, he would just sit and play video games while the dog was trying to sleep under the sofa rather than his bed, hiding from the light. I've also noticed that the rare nights they don't take over the living room, the dog is calmly sleeping in his bed and isn't even bothered if I use dim lights for a bit. He also doesn't seem to want to eat as much. I've noticed on several occasions when the landlady either forgets to feed him (on time) and he doesn't kick up a fuss, and when she does she has to prompt him several times before he finally eats. They also seem to get up at random times, so I guess his breakfast isn't routinely timed either.
Is this something that could be harming him? Is there any other signs to look out for? He doesn't seem unhappy exactly, but he certainly seems less lively to me. I'm not sure if I could even do anything for him, end of the day, I don't own the flat, the dog or the man, I'm just a tenant, but it's definitely bothering me a lot. The dog is technically co-owned by the landlady with her ex. I'm looking to move out myself when the pandemic settles (largely due to the same new housemate that has been moved in without a word), so I could get him involved in it then.