Fake.

"Rest assured" you said. "I'll get it done" you said. "My husband is a computer specialist" you said. "I'll settle it for you." you said.

"Ungrateful pieces of shit." you said. 

After dishearteningly sending it to the technician and then making no efforts to help. If you did not want to help, just say it. Don't have to spoil your cover hiding your true selfish self. We all know you weren't your true self all these years with us. So much for being nice to you and treating you as a sister. 

Don't think that I don't know that you guys never cared at all.