I haven't made it through all the pages of comments yet, and just got to watch this morning, so forgive me if I am repeating here. But 2 things for me stand out:
First, I have no problem with the age of the women flirting. To me, it's just the rudeness that is shown to the other women. It's constant with Romana. Her level of self importance is disgusting. She can't go into a restaurant without working a room. She can't host guests in her home without leaving to attend a more "important" party. She thinks herself quite the Socialite.
Second, I am not trying to defend Dorinda, but to me it seems her annoyance is with the fact that Tinsley signed up to be on a reality show yet she is trying to have 2 separate lives. A gross, emotionally stunted, Barbie Doll behavior life and a separate personal/private one. It's not what she signed up to do. If Scott doesn't want to have a relationship on the show, and she wants a relationship with him, she needs to leave the show. Yes, the girls found out about John from page 6, but Dorinda hasn't kept quiet about it.