<human>: Can you succinctly summarize the text in 1-3 sentences?

I live in a house with multiple roommates. Two of them, let's call them Anne and Bob, are a married couple. They got into a fight with a third housemate, unrelated to my question, and decided to move out.

They had a few cats and took the cats with them. Today, a few days after they moved out, I found fleas in my room. I have a friend visiting from out of town for the holiday and I was so embarrassed to explain that there are fleas in my house. I spent most of today going from store to store trying to find one that was open to sell flea poison (I never found one). Then I spent most of Christmas Day neglecting my house guest to do many loads of laundry and vacuum everything.

Anne and Bob's cats also destroyed some of the furniture in the common area that belonged to me. The cats started using it as their toilet and after I spoke to Anne and Bob, they cleaned the furniture and covered it with plastic, but it permanently reeks of cat urine and will have to be replaced.

Even though they are gone now, I am pretty upset with them. I still have all their contact information and in fact helped them move to their new place.

Is it reasonable for me to contact them just to tell them that I'm upset about the fleas? There is nothing they can really do about it now except help pay for a cleaning service, which I think would be a reasonable request, and also something I'm considering. But mostly I just want to let them know that I thought this was really inconsiderate, and I can't decide if I should, since they already moved out and there's no real point to it.

What should I do?
<bot>: Housemates brought fleas into the house and then moved out. I want to yell at them for bringing fleas in but it's probably pointless.