Ne-Yo took action after his ex Sade Bagnerise showed up at his Georgia mansion and started acting up. A source close to the situation told RadarOnline.com that Ne-Yo called the police and asked that Sade be escorted from the premises on Thursday morning. We confirmed with the Alpharetta Police Department that officers responded to Ne-Yo’s home at 12:30 AM. Due to the sensitivity of the case, they could not reveal more information.When we contacted Sade for comment, she told RadarOnline.com, “We are two parents co-parenting and we had a heated argument.” She admitted that “emotions escalated” and insisted, “I removed…