I Just Don't Understand

I'm just being a friend and a friend needed me the most and need my advice. A friend is supposed to be there if a friend is in need right? well this is what went down. A friend needed me and needed my advice and well I did that i gave her some advice for something she was struggling with. So here i was telling her what to do. And she was saying hell yeah your right i would never be able to forgive her from a situation going on with her and a friend and she's like all for it of letting go of this bad friend of hers and changed her phone number and she was like yeah she will never find out my new phone number and her friend was making up bull crap about my friend that was talking to me about this situation it was a pretty bad one and what gets me is this friend of hers talked bad about my friend. Like if she was a true friend than why would she get her friend in trouble why would she make up bull crap and her friend was making up some pretty nasty disgusting inappropriate comments about her. And they have known each other for six years and things were going pretty well she was taking some of my advice and than all the sudden it turned around her friend the one that was causing trouble was begging to be friends again and my friend was actually starting to give in and i started getting irritated and aggravated with her. I'm like well what do you wanna do? she's like I don't know. Her friend starts threatening her and says "unblock me or I'm gonna call your number" I'm sorry but that's to easy she needs to know how to really threaten her. Since she had her blocked on Facebook and all she could say was wow you are right she's begging to be my friend again. it got to the point I'm like you know what you do whatever you want i don't care anymore and forgives her friend and becomes friends with her again on Facebook. Yeah she faked it and went a long with it pretending to listen to my advice. She didn't want my advice. Well I have something more why the hell bother coming to me and needing me for advice. I was just being the good friend and helping her out and giving her some advice on what to do in the situation. It pisses me off. Don't ever come back to me for advice ever again. Take it to someone who cares and tells you what you wanna hear cause obviously i don't tell you what you wanna hear. No I tell you stuff you do need to hear you just don't wanna hear it. I don't wanna hear your problems anymore. I honestly don't know how some people can tolerate people in their life. I know it would be hard to let go of a friend thats been bad and thats not a good influence and i know it would be hard especially being friends for six years but still if it was me i'd be done i'd be over it. But that's just me i don't tolerate people like that in my life. Sometimes you gotta let go of someone if its for the best. Its just freaking irritating. I'm so done giving advice to my friends now. it just isnt gonna work anymore. and it hurts that it went like this. I hope she's happy she doesn't even care about the advice she just wants my stupid opinion. She needs to stop asking for advice and other people's opinions. Its her life. You don't need everyone's opinions on everything. I'm not to happy with her at all. I'm probably gonna hold a grudge for awhile i'm not to fun once you piss me off. Because of this i'm feeling like its the type of day to just put my middle finger up and say fuck it i'm done!