It's strange.
Sometimes we meet up with people and the first 2 or 3 hours are fine.
After that I find talking, oops sorry, conversation difficult.
And it's not just making conversation it's listening as well.
I often sit there thinking, please please stop talking, and this is with people I like
OH assures me he feels the same but he does keep on talking.......
Mind you, he often comments after such episodes "talks a lot doesn't he/she"