And maybe he just doesnt want to hurt his daughter, thats a good enough reason...he needs to get some backbone and be honest.
He already did it. He didn't provide better future for her in the UK. He's a PE and a teacher, wow, I'm impressed, but didn't think about his own kid... Also, I wonder what stories he's telling his daughter all the time, if he has ever visited her in PL. He's a teenager, he hates him, I'm sure. 2,5 yrs there.
Anothre thing I am sure of, we have in Poland very strict child support law. I don't know, if you want to date him in the future, after he would be paying his wife and his daughter more than half of the "big money" he makes.