<human>: My girlfriend and I (both 25 years old) have been dating for about a year. I'm starting to get really frustrated with something and I need opinions...

Her and I, like many other couples I'm sure, have our little tiffs. It's nothing bad. We don't call each other names, or anything. Just disagreements that sometimes go longer than they need to. I think it's just both of our personalities as we're both relatively stubborn.

However, her mom is where the problem lies. My girlfriend is really close with her mom. I too have grown close with her, or at least thought I did. Anyway, almost every time my girlfriend and I fight she tells her mom about it. No matter what, it seems her mom always sides with her. Then her mom is incredibly rude to me. Like this last weekend she started posting on Facebook how I'm a "whiney bitch ass". 

I've mentioned many times to my girlfriend that I feel this is incredibly inappropriate. And that her mom shouldn't get involved as our relationship doesn't concern her. Now if I was hurting her, or endangering her-- yes, I can understand. But her mom shouldn't get involved in every little fight. This has happened numerous times. I asked my girlfriend that if she continues to do this, if she could just refrain from telling her about every small argument we have. All it does is creates unneeded stress and drama within the relationship. My girlfriend thinks I'm being unreasonable and says that her mom gives good advice. However, I disagreed saying that it's always biased so I'm not sure how good it is. Now my girlfriend is mad at me.

Condense the text into a few key points
<bot>: Whenever my girlfriend and small argument she tells her mom, then her mom is incredibly rude to me and blames me for everything; I asked my girlfriend to stop telling her about everything-- is that unreasonable?