My mother was very uncomfortable in your presence too, and it was her first time. There are some basic rules to respect when we go into someone's home . One of them is taking off your shoes when you enter the house.
What you did not do, you came in with your shoes ( Dirt from the streets) in the bedroom and left them there , I'm sure you do not do that at your own home.
You think that you are in your right but you do not question yourself once ! but there are some notions of basic hygiene to respect when you are hosted by someone.
Also, when you leave the bathroom or any room: turn off the light, what you did not do either .
The majority of people who come here have a good time and feel welcome ...if they have a minimum of education ;)