Obviously you must be "cautious" ...is the right word ... perhaps not ...but if you plan to take your boyfriend on a tour group do your research, going on a pub crawl tour group in Soi Bukhao for example may not be a good idea
It's only a perception that others may be whispering behind your back ...maybe in reality they don't care .
As for hotels I can only recall one bad experience in 2024 ,October to be precise, no I don't know the exact date , but it was in Bangkok near Khao San road where I met a Grindr date in the lobby
In the lift a young Australian couple were in there with us and after looking at my Thai Grindr date as she got out of the lift she said to her Aussie boyfriend "disgusting old men with boys !
Maybe that should give YOU some inkling ,if that's the right word , INKLING to stay in a hotel closer to the gay district !!!!!