I want to know if a friend of mine is obliged to pay his ex any money? Simply put, as boyfriend and girlfriend, many years ago they had childen...approx now 17 and 15 yrs old. The ex girfriend has subsequently remarried,and been looking after children. She's been married approx 7 yrs. Her husband has always been in employment. Is my friend obliged to pay any money to his ex girfriend? (For whatever reason).