hey,
I am very sorry for your experience. I am hosting for almost 6 years and in those 6 years I had 3 guests who claimed that I would have bed bugs. I thankfully still don't have any. I was the same crazy as you, cleaned, invited exterminators, even reimbursed 1 guest. I think some guests are scammers. A woman, who I reimbursed for 10 days stay, she stayed with her daughter, never paid a second person, and after her entire stay, she checked out and started sending me pics from google, of random pics she could find on google of bad bugs. Back then I was very scared of bed bugs and a bed review, so I reimbursed her full stay. It turned out I don'd have bed bugs. A second man, 4 years later, stayed for couple nights and started texting me, on day 3 of his stay, that he thinks I have bed bugs. This time I was smarter: I offered him full refund and money for his laundry. He refused to do the laundry, kept staying at my place and even returned 2x next month. I think I reacted proper and he said, "You are a very nice person". So I still had no bed bugs. Third time it happened to me couple days ago, 6 years of hosting. The guest, checks out and 4 days later he starts sending me text messages, he thinks I have bed bugs. I responded polite and asked him to send me pics of the bites, he refused. I asked him where he was staying after me, he said, at his brother's place, but he mentioned it the bites as he was driving in his car. So, during I text with him to find out what he needs, he writes me a review and I get a notification that he just posted me a review. And he texted on top of it, "I gave you a good review!". End of convo. So now couple days past, the exterminator was here, I still don't have any bed bugs. I honestly don't know what it it and why some people use bed bugs as a threat, I definitely feel abused and would love somehow to develop a strategy to stop this mind games. I feel like some people are abusive and like it to threaten you to get their way. After couple thousands of guests I am personally tired of frauds. Yes, I feel scammed, robbed of my deserved money and abused by this fraudsters. But what can you do?