Law / Will my friend have to pay back half the loan his ex-wife took out in Poland? [22]

Hi, I am writing this thread on behalf of my friend and was just wondering if someone might know some information on Polish law to help him out. My friend is Polish, and has lived in Nottingham, England for four years. He married his long term girlfriend, who is also Polish last year in Poland. She has also lived in England with him for the same period. Unfortunately, in September last year she left him for another man. As a result they have since divorced. Their divorce was passed in a court in Poland. The problem he has is that last year after they married, his ex wife took out a loan and gave the money to her family in Poland, her brother even brought a car with the money. My friend did not sign for the loan, it was only signed in the name of his ex wife.

After they split she initially said that she did not want anything from him, however, she is now demanding that he should pay half the loan repayments, and has threatened him with legal action. The loan was taken out by her in Lloyds TSB. This is an English bank and there are no branches in Poland. If she wants to take civil action against him, can she pursue this in Poland or is this a matter for the English courts? Furthermore, now they are divorced does he even have to pay anything back? I would really appreciate some help on this one as my friend is a geniunely nice guy and just wants to get on with his life, and put this chapter behind him. Thank you if you can help me with this one.