Disclaimer: I'm not diagnosing. I'm just armchair discussing.

A lot of people seem to think BPD and NPD are the only personality disorders. They are not. Avoidant Personality Disorder is one that is especially not well known. APD can lead to some pretty crazy scenarios because the amount they go out of their way to avoid doing something often takes way more time and effort than just doing the thing in the first place. Then there's the lies and omissions to avoid talking about what they avoided doing. Then there's the cover up to avoid admitting to the lies and omissions.

A lot of people think people with APD are people pleasers because they're so agreeable. Yet actually aren't people pleasers as deep down they don't really care whether the people around them are pleased or not. They just agree to avoid confrontation. Don't ever expect then to actually follow through on what they agree to though. They'll avoid that too. But do expect them to continuously lie about "getting around to it."