2 rooms house of 43m² in Ottawa

I moved back to Ottawa, my hometown 5 years ago from living in the GTA for 20 years. I moved into this house with my best friend but after 3 years he had to move out to take care of family. My current roommate has been here for the last year and half. The rent is great and its hard to find anything the same size for the cost. I can afford the place on my own but the whole upstairs is empty. So I thought I could cut my expenses and hopefully give someone a nice place at an affordable cost. I dont own the place, Im a tenant as well. As my outgoing roommate is a woman Im hoping to keep the status quo. Im a full-time high school teacher and have been teaching for the last 20 years. My work is pretty stressful so I need my home life to be the opposite. I live a pretty quiet life. Im a very clean, organized, love routine, love to cook and Im a very sociable person. I am usually pretty tired when I get home, but I try to work out 5 times a week in my gym or go for walks around the neighbourhood with friends. I used to be a practicing RMT for 20 years as well but Im now retired. One of the rooms upstairs is still a therapy room with all my equipment. Both my jobs have required me to pass a background check multiple times. Im allergic to cats and most dogs, so I am looking for someone who does not have a pet. Thanks for taking the time to read my ad and best of luck in your search.