Why am I getting so annoyed by this girl?

I have this frenemy at work. She's a nice enough girl and at first I felt sorry for but lately she's been really annoying me.

She's super pretty and all the boys fancy her at work it gets on my nerves because she always gets the easiest stuff to do at work because all the men in charge fancy her and then she comes complaining to me but it too hard and she hates working here whilst I've been given the shit work and don't get any special treatment based on how I look.

She also loves the attention and loves to flirt and lead on men at work even though she's only just broken up with her boyfriend last week because she found out he cheated on her 4 times which I do genuinely feel sorry about for her that must be horrible for her.

She even opened up to me about her boyfriend cheating and the fact there's always some kind of rumour going on about her and that a lot of girls don't like her and creepy men are always trying to hit on her. She asked if I could relate to her situation and I was thinking "you really think I have pretty girl issues?" But I was empathetic towards her and I could relate a little but she doesn't help herself by flirting with every guy left right and centre.

The next day after we had that talk I saw her on the bus and smiled and said hi and she completely blanked me which I thought was really rude of her and that's when I started to go off her.

I have a boyfriend so I'm not jelouse of the fact all the boys fancy her because I have a lot more of a better relationship with my boyfriend then she clearly did with her boyfriend and I don't care for other men's seal of approval.

She's also a bit of a pick me too which o find super annoying. I was even considering compering pictures of me and her on here but it felt wrong so I decided not too. It's not because I'm insecure I just want to know why she gets treated better then me and does a lot less work because to me its all pointing towards the fact she's pretty and leads men on at work.

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I'm not that bad looking myself really and I'm nice and friendly to people at work just like she is but I get treated like shit compared to her. All the guys are constantly talking about how hot she is and it gets on my nerves
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Before you all hate on me, I've had some self reflection on the situation after hearing some of your guys opinions and I've realised it's not this poor girls fault and I'm not annoyed at her. Yes she's kinda toxic and I probably should just ignore her but I'm mainly annoyed at the men at my work for being blinded by lust and objectifying women. I have to remember women should stick together not hate on each other for something a man has done to divide us all
Why am I getting so annoyed by this girl?
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