She heard her first words watching the Mexican soap opera Marimar and, from then on, knew she wanted to learn that strange language. Gloria Ane has just started a master’s degree in Hispanic philology at the Félix Houphoüet-Boigny University in Abidjan, Ivory Coast, but she is only one of the 3.5 million Spanish learners in sub-Saharan Africa — a figure that has more than doubled since 2014. Demographics, the rise of Latin music and cinema, socc…