UK, Ireland / Polish women that go "off the rails" in London [15]

I have read many posts on here and know of many polish girls/women myself (none more so than my ex-girlfriend) who have come to London (or another UK city) as sweet, loving, good-natured, loyal girls and after 6-12 months here have gone completely off the rails. And by gone off the rails I mean have lost their morals, become dishonest, even adulterous, and are more interested in partying with other polish deadbeats than maintaining loyalty and respect for their partner.

In my situation I did everything to provide for my polish girlfriend - made a home for us, paid for almost everything, supported her in everything she did ... I did this all because she showered me with love and constantly told me that I was the only thing that mattered to her in life and that her place was next to me.

Now after nearly a year of being in London she has completely changed beyond recognition. She is hard-faced, cynical, conflict-prone, selfish and dishonest to the point of where she cheated. We are not together, she moved out. She never showed any remorse for her actions and never even apologised. I am amazed that someone could change so much, it saddens me deeply.

But it's not the first time I have heard such a thing. The question is why does London have such an effect on (young) Polish women?

The only thing I can think of is that because she is very naturally pretty that she was not used to men staring at her and idolising her in this way back in Poland. Has she become aware through her inflated ego that she is able to manipulate men here with her beauty and therefore feels she doesn't have to make any real effort in a relationship, take responsibility or deal with relationship problems, because she feels she is ‘above’ that and has many other options.

As this all quite fresh to me, I would like to ask people who have been in a similar situation … Has the girl eventually grown up and realised the error of their ways, that they can’t treat people who are good to them like that. Dare I suggest that one day she might grow tired of the partying, decide to grow up, realise what she had, and even try to make some amends for her ways?!