Why do I get the feeling that despite sleeping with someone else's boyfriend whilst engaged to nick, then trying to kill them after their dad just tried kidnapping them, then maybe killing an innocent woman and causing the platts house to collapse, that somehow everyone will blame Tracy for all of this (especially ken). Again.
And we will be expected to sympathise with Carla when everyone shuns her for about five minutes.
It's gonna happen, right?

Carla knows she is in the wrong. She's entitled to feel a bit sorry for herself.

However, Tracey is not entitled to maliciously ruin other people's lives by getting involved in their business, blackmailing them, threatening them and generally playing games out of sheer boredom.

Tracey had no business doing what she did at the wedding - her and Robert weren't together so she wasn't cheated on.

Carla wasn't trying to kill Tracey, she just wanted to unnerve her. Which she did. Tracey should have just walked home but instead she needed to play one more game. She is literally incapable of being the bigger person.

Plus she plotted to leave Robert for her jailbird ex Rob Donovan, something else that seems forgotten.

In fairness, Rob over Robert every time.

Carla is always painted as a saint, she isn't much better than tracy to be fair. Glad to see the back of her.

Carla is 100% selfish but not evil!!
Tracy is both!!!!!!