GF's mother problem, short and simple Options

[RoseTRAX]

So here we go:

So today my gf tells me that her mom has found out we go out.
It's all because of her little cousin who won't keep her damn mouth shut.
I mean it's her cousin she should help and support my gf but instead that little b****
just snitches on her.(sorry for the language but im pretty pissed off right now and sad)
My gf's mother is making us two break up.
It seems that her mom doesn't want her daughter to have a bf.
Also her mother told her that if she doesn't break up with me she would send her back to the philippines (yes my gf is filipino.)
As for me i don't know what the hell to do since i've never been in this type of situation.
I really don't want her to leave me.I'm mostly her first everything.Not her first bf and all but first serious bf and im her first kiss.So there is much more i'd like to do in our relationship.
I'm guessing i should talk to her mom and ask her what other reasons for us to break up.
I want to try and convince her to not make my gf break up with me.
Another thought is to fake that we broke up and not tell anyone about it.
So we would still be together with her mom believing we're over.
So anyone? Suggestions...
Help me out please!

[RoseTRAX]

^
She's goes to my school so i see her everyday.
Although it seems she is growing distant from me.
She is very cautious now that her mom found out.
She is grounded also.
So everytime after school i try to talk to her except she just wants to shove me away.
Like "I can't talk to you.Don't talk to me! Go home!"
i felt very bad when she said that.
The next day she says sorry and all that.
I told her to talk to her mom by herself so maybe her mother would listen to her.
From that nothing else has been happening yet...