Returning to this beautiful collage by Matisse, notice on the right side the background of a reddish Yellow, with shapes formed from bluish Red on top.  Notice the movement here.  The reddish Yellow moves towards the Red of the bluish Red, but the bluish Red moves away from that.

This is how love triangles start… I like you, but you like someone else…  Life can be so sad…  🙂

Here we see the chase around the circle.  We start at Blue moving towards yellow, but the Yellow is moving towards Red.  We have separation.  One moves towards the other, but the other wants nothing to do with it.

We can see this clearly in chart form.