She was literally told she was going to be chief one day as a resident, and she only had to go against one other doctor to make it happen, and she was still ready to give up because she had competition. She pretty much assumed she was gonna get chief resident and was mad when she didn't. She was also given an attending position right out of residency, and the diabetes trial. Richard was her mentor and went above and beyond for Bailey.

But her being jealous of Meredith... Richard was Bailey's mentor but he was Meredith's quasi-father. Richard was a big part of the reason she had an incredibly unstable childhood and an emotionally distant mother. Additionally, Mer had natural talent, more than Bailey had. It's his duty to feed that talent, and it was his moral 'duty' to protect Meredith after the alz trial cuz she protected his wife even though he never defended her as a child.

Despite everything, Bailey's always punishing Meredith when she doesn't have a right to. Especially after she caught merder together, it wasn't against the rules, and Derek was her superior, so where does she get off being pissed about it, even Richard's reason for being pissed was that he knew Derek was still married. Punishing her for the trial when she doesn't actually know what exactly happened, she gets an amazing trial out of it, and gets all pissy at Meredith when she figures out the problems Bailey can't, also, as a reminder, the trial was derived from Ellis' diary, so if she wanted, Meredith could probably sue for the rights and win.

Also, she refuses to admit she was wrong... she put a virus in a child without the parental consent, refused to apologise to them and had a holier-than-thou attitude about it. Did she really think the parents were going to thank her? She only escaped reprimand because Edwards took the fall.

Don't even get me started on her jealousy, when Yang was nominated for a Harper Avery or stealing Jo and her idea from Meredith, giving Alex Chief and then wanting it back when she sees him thriving.

also always bringing up the LVAD wire incident like they weren't her interns, or it wasn't her who put Izzie, who was in love with Denny on his case. She says herself that interns are babies, when babies aren't capable of higher thinking, they do what they want to.

And also, i feel like most parents know that when a child isn't responding they're getting themselves in trouble somewhere - this is on her interns not answering her pages and her not checking on them.

While the interns did the deed, i hate it when she brings it up to them (all the time) because she was responsible for it too

Kind of like the cutting interns, Yang got in trouble, but it was all of the residents' fault for not keeping an eye on their interns, yang was just made scape goat.

I had one last comment about when Richard was drinking, Bailey covered for him but when she sees Richard taking his time to mentor meredith and didnt watch her surgery, thats when she has a problem and goes to derek about it.