Awkward people

Ever known anyone it is difficult to talk to? I have a few people like this.

One is the wife of a friend. I really like her. But conversation is stilted and awkward. It doesn't flow and isn't easy. It is always hard work being with her. Odd, because I can usually chat away to most people.

Another one is an ex landlady of mine. I lodged with her for a few months when I moved to the other end of the country. Not as keen on her, although she was perfectly nice and actually, was very kind to me. But again, I found making conversation with her very difficult. Stilted. Abrupt. Hard bl**dy work.

My current boss. I never really know when conversation is over and end up shuffling awkwardly out of her room, not knowing if I am being abrupt and exiting before the end of the convo. Strange woman. I always find it hard to talk to her.

OR maybe it IS me? But then why do I find it so easy to talk to most other people?