I think that it is a biological trick. When you are young there is a a strong biological urge to reproduce and people do not think about the long term commitments involved which in a way is understandable because everybody changes as they get older and we do think like that at the time, do we? We all learn from experiences and change. It is later when all the fun and sex is over and couples just look at each other and think, 'God, why am I here?" Then you have to start worrying!
In Poland we have a saying that goes: "Każdy sądzi po sobie" - which means that people like to judge other people through their own experience and thoughts. You know, you will always suspect people to do what you would do on their place, etc, etc, I hope you get the idea what am I trying to say. I think that I already know why you suspect your country men of all those "indecent" motives standing behind their decision of going to Poland and the last post of yours explains your grumpy attitude towards Poland... Well, I would like to say that I'm sorry that your relationship with a dreamed polish woman got miserable but than again that would be a lie... Ah never mind. :)