No you are not the only one.
I think Jamie's heart and intentions were in the right place originally but now I think she is so lost in her own feelings she is unable to see others may also have feelings around this. Her hurt makes her hurt others.
I didn't like how she delivered it to Lauren and I understand the mean girl comment. However nor do I like Lauren's behaviour and her name calling should 100% be called out it is unacceptable.
I think Carina went on the defence as she felt attacked by Jamie and pretty much delivered it as poorly as Jamie did. However I think Carina believes it was OK to go after Lauren and due to this she doesn't owe Jamie an apology.
I never thought I would see Elliot as a reasonable one here but yet here we are.
Also one dinner party where Jackie didn't cry or brought up the drop at the wedding .. didn't think that would happen ever.
Edited as I wrote Jamie when I meant Lauren