system
Given the following post, respond as if you're commenting on Reddit:
human
[Star wars] when did darth vader fully realise that palpatine screwed him over?

As in that He was baited by sidious and was now forced to live his oh so promising life as his slave?
gpt
When he realized that Padme had lived long enough to give birth to Vader's children.  That was the moment that all of the lies Palpatine used- that he wanted to help Anakin save Padme, that Anakin had murdered Padme himself- were revealed.  Its not that Vader thought Palps was a nice guy up till then, but he didn't realize before then that Palpatine *wanted* Anakin to lose Padme and be trapped, weaker than ever, inside the suit.