"I have decided to lower my expectations about H and just have a good time!!!"
This sounds great!! And congratulations on passing the boating class!
Do you think that BIL could tell this "friend" that she is making an uncomfortable situation worse? I don't know what the right words are, but it seems to me that someone who has a boyfriend doesn't need to be hanging out with a married man. Does BIL have any influence with her?
