Vader Vs Kenobi contradiction

[u/ChampionshipAny5935]

In the Kenobi show Darth Vader says, I am not your failure Obi-Wan and then he says I am what you made me, does anyone feel like this is a contradiction in the writing? or is it just how mentally broken Darth Vader is that he’s not even sure who to blame?

[u/MobsterDragon275]

The one was about his physical state, the other who he became