When using either horizontal or vertical ordinate dimensions while making a 2D drawing, the dimensions will overlap on one side. The leader does not have any bends to move or adjust either. I do not remember having the same issue with 2012.
Welcome to the forum. Sometimes bends (jogs) get added in automatically, but you can add them as needed. Right-click on a dimension and choose Display Options > Jog. Then you can drag them to space as desired.