1. Antarctica is losing land ice mass.  http://climate.nasa.gov/vital-signs/land-ice/
2.  Antarctic sea ice extent doesn't have much of a trend one way or the other. Up to a year ago, your point might have been valid, but it's no longer the case, possibly due to El Niño as this source indicates. Various explanations for the previous increase include the increased glacial calving and winds pushing the sea ice farther out to sea. http://www.climatecentral.org/news/el-nino-keeps-antarctic-sea-ice-from-record-19555