How Do I Convince My Wife I Need To Travel Out So Our Kids Can Have A Better Life?

I am in a dilemma over an issue and I need advice from fellow readers. I am a 36 year old family man who has 2 lovely daughters from my darling wife. However, feeding them has been pretty tough.

    

My childhood friend recently came back from Germany and I intimated him with my plight. He has agreed to sponsor me to Germany, but my wife rejects the idea, claiming I would be enticed over there and I will forget about her and our kids.

I have tried to no avail convincing her to let me go. She told me at our last conversation about the issue that if I go I should consider her my ex-wife. Please women in the house, how do I convince her to allow me go?