1. A is lying to B, and they know that B doesn't know the truth. The intent is to make them believe the lie, which is intentionally misleading them and bad faith
2. A is lying to B, and they aren't sure if B knows it's a lie. The intent is to make them believe the lie, which is intentionally misleading them and bad faith
3. A is lying to B, and they know for sure B knows it's a lie. The intent is either to provoke an emotional reaction from either B or someone observing (which is bad faith), or performative for others who will see the lie and might fall into categories 1 or 2, which is bad faith
I don't understand how anyone could plausibly argue that lying to someone intentionally isn't bad faith. Maybe I'm the one falling for category three here
For example, if I lie to protect both myself and all other parties involved, that sometimes can be in good faith! It can be bad faith if I know that it hurts them and also know a less hurtful alternative, but if I really believe the less immediately hurtful alternative will lead to a worse overall outcome then I can still be acting in good faith. It's really a lot more nuanced than "deception bad". I have to deceive myself all the time to achieve good outcomes! now I wouldn't say my treatment of myself is good faith but I try sometimes.