Hi Pacific,
I was following the thread and just now that I get to reply -- I am not that learned on Derma issues..
Going back to your original question: I feel that your girlfriend is just finding it difficult to say to you that once you get married and you bring her to France, then you would obviously take the responsibilities of sending her children to school. This is an arrangement that two people should have prior to getting married, but a talk that preferably should take place over dinner and not via the internet. Family issues are serious issues for me, that I wouldn't also want to discuss via long emails. Perhaps, she is feeling awkward to discuss this when in fact you have not met personally, and she would no want to sound like she is just planning to mooch you.
She's 50. In the Philippines, a woman of that age will feel that her market is not exactly as big as that of women on their 20's. For some, it's also a novelty having a foreign boyfriend or husband so she may be feeling that she's done really well considering her age. And this is possibly why there's a panic attack when you mentioned of your wedding delays -- she could be getting paranoid that she's done something wrong which puts you off, but not exactly because she wanted to rush and all that.