That's because Vanessa was an insane person and needed REASONS.
Angela using her entire speech accusing Bay of being the hacker is pretty stupid though. She could have just said your power app is too dangerous and you should have kept your mouth shut about it. Bye.
The whole thing seems manufactured, all the way down to vegas' bizarre tweet about a nurse practitioner (no reason for that at this stage of a possible pregnancy). I'm pretty sure she got her period last week anyway.
Also the babysitter is a douchebag and probably made up the entire thing.