Mumbai: Amidst high drama, a spurned lover allegedly attempted to kill his ex-girlfriend and neighbour by slashing her throat with a knife at her residence and then pretended to commit suicide by jumping off a 22-storeyed building under construction in suburban Chembur on Tuesday. Ajay Dhotre (20), a resident of Ayodhya Nagar slums in Chembur, was later arrested by police. According to RCF police station officials here, Dhotre and the 16-year-old victim were in a relationship for the past three years. After her parents learnt about the affair, the girl began avoiding the accused. After he failed in his attempts to revive their relationship, a furious Dhotre went to the girl’s residence at around 11.30 am when she was alone and attacked her, the police said.