Differences with her husband over choosing a suitable girl for their son ended in a teacher hanging herself at her home in Madivala on Friday. The police said Ambika (50) was depressed after her husband rejected her choice for a bride for their son Jayashankar. Instead, Gangadharaiah, a retired BMTC employee, had selected another girl and the couple had been quarrelling over this for weeks. The police said Ambika took the extreme step just 3 days ahead of the wedding. She was a teacher at the government high school in Doddakannahalli.