I hope this covers all the questions asked -
I've been in her house lots of times, it has one bathroom. The last time was a while ago though, maybe three weeks to a month. She lives by herself so I doubt she'd let unknown men in, but she lets people in generally. It would be lovely if she had a secret lover, I hope so! We've known each other for about 10 years, I met her though my husband, they're friends from uni.
She did know I was coming, it was arranged earlier in the week. As for it being a favour, she said she was nervous of going out alone so I offered to cycle with her and she accepted. Cycling is something I enjoy and it was a lovely day, so I wasn't put out at all.
Yikes, the aunt in that thread was horrifically rude, I can understand refusing entry to someone who treated you like that.