Can someone help figure out where I went wrong? Any help would be appreciated

I have an abutment wall that has A RT/LT padding to extend the outer edges past the line with works. My issue is when I lengthen the line by moving the vertex, I end up with a gap between the main wall and the edges.

The nodding is very complicated maybe I made it more complicated then need be and suggestion?

I have an abutment wall that has A RT/LT padding to extend the outer edges past the line with works. My issue is when I lengthen the line by moving the vertex, I end up with a gap between the main wall and the edges.

The nodding is very complicated maybe I made it more complicated then need be and suggestion?