I think there can be many cases like ours where separation is almost immediate and the marriages never really existed or where in several cases I personally know of, along comes the baby and off goes the husband with some other girl leaving the mum to leave baby with her folks and ship herself to HK/SG/Saudi to support her child. I have actively tried to put couples together having got to know through my wife several very dedicated mums who are in the position of still being married in the Phils years afterwards. In ALL three cases these couples are now married in Hong Kong or in the USA and had gone through the anullment process. Why should hard working beautiful deserted mums be left partnerless when they have so much to offer.
Again I would still urge caution and take time to understand and verify if possible your girlfriends claims.