I have a network of polylines between multiple nodes. All nodes are connected with lines in a two-way system (A->B and B->A). I want to show all the lines at the same time, but the problem is that they overlap and only one correlation are shown (A->B but not B->A). This means that the correlation just seems to be one-way instead of two-way.
How do I show them next to each other using QGIS?