Jure Poglajen, partner helped migrants on Greek island of Lesbos
Prime Minister Alexis Tsipras applauded bill’s passage
Referendum to define marriage in constitution failed in February
Countries struggling to respond to crisis
Lawmakers have failed to consider civil unions bill
Finland last Scandinavian country without gay nuptials
Mayors in Italy push for recognition of gay marriages performed in other countries
LGBT advocates applaud law as ‘big step’
Constitutional amendment passed by 102-26 vote margin.
Shevchenko protested against country’s ousted president