I totally agree with the others, as, I'm sure do you if you re-read through your post. Though I can understand the slim chance that someone else may be able to give a glimmer of hope for her, hence your posting.
I might be out of line however it does come across as though this may be a 'planned' pregnancy / divorce etc etc with your friend being part of it - just to get her guy into the country. Then when he is - he divorces the other woman and remarries your buddy.
The only reason I say this is because why on earth would she want a low life like that in the same country as her after he buggered off and got someone else pregnant.
Lastly, in support of the run far, run fast statement - could I add that she maybe slapped him over the head with a trash can lid before she does.