I kinda understand her tho, i mean her little brother had a probably very bad relationship with someone that probably she didn't approve of and now she thinks he is in a double relationship which is strange in almost a lot of pepople's eyes. I think she is rather handling it good considering how she caught them in the act. Though i don't approve of her trying to arrange a date when she knows he is up to smth with two young man i still think she is just trying to do what she thinks would be the best for her brother. Which i can relate because apparently the boy is weak willed and super naive even though he is vet and almost 30. So she is just trying to protect him in her own ways its the heart of a sister turned out mother kinda feel.
His sister is really getting on my nerves. Raising someone is one thing but trying to make decisions for them and trying to dictate their life when they are an independent adult is totally not acceptable! How can she use that 'I raised you' line when he is a successful doctor and almost 30 years old?! ( ̄へ ̄)