I don’t think I’d really want to do anything outside with my T - my solitary hobbies are mundane, compared to cold water swimming, but they’re still more or less ‘just’ for me. I don’t feel like I’d know how to share that time with others. I think if the idea/suggestion of doing something with a certain person produces a viscerally uncomfortable feeling in you, that’s a good indicator that it may be crossing a line.