Love / Problem with a brutal American guy (now I live in Poland) [88]

I have a dilema .. it seems it's a serious problem - I met a guy long time ago in Connecticut, he was weird and there was religious conflict between us and he is sort of a "playboy" type, not very reliable, too young for me, arrogant, he doesn't respect me really at all.

In 2010 we met again and it was a disaster - I alaso realised he was doing some weird things, looked to me like human trafficking, it was a big problem but he seemed obsessed with me - but anytime I wanted something more, he was already not for me there.

Now, I am living in Poland, almost happilly settled after a long time of adjustment and he is making me huge problems. Harassing via internet - I don't know, is it a sort of culture to offend someone if you don't get what you need ?

This guy is brutal, I don't wanna know him but also I feel there is a culture difference between us and us law seems to ignore my complaints or whatever.

What shall I do ? Just ignore that ?