<human>: So I'm an only child. I lived in a different country last year. Last night in said country parents had a huge fight. While this was not by any means the start of the issues for them it is the point at which I feel that it broke me. 

While they are not fighting everyday directly my dad pretty much ignores her/does his own thing and she at least once a week cries or says things like "I married the wrong person" or "I'm so unhappy" etc to me. She also gives out all the time about my father. While he doesn't offload like this, he has not been the best husband either ; not getting her birthday presents and being condescending. 

Every now and again I snap and ask her what the point of giving out to me is why doesn't she address the issues with my father but she just says she's tried and he walked out of the room and various other versions of this.  

Anyway my point is, I have no clue how to handle this and I have no one to talk to as I am an only child and I do not want to discuss this with my friends or girlfriend. It's really getting me down and I honestly feel like a different person- I cry all the time, snap at people and feel really lonely sometimes and I'm pretty sure this issue is what has caused this personality change. 

I would love another perspective or just someone to talk to about this. Thanks.

Can you summarize the given text in a few sentences?
<bot>: Parents have a crap marriage, mother cries to me all the time about it. Its really affecting me and I don't know how to handle it.