I don’t think you seem to have any problems, but it sounds like you’re partner may have some things that they’ll need to work out.

People are creatures of habit - while it is true that your partner is being an asshole, I currently don’t have any reason to believe that they’re doing it out of malice rather than habit.

It sounds like your partner may need to seek professional help, because it is their responsibility to manage their ADD/depression, and it sounds like they may be struggling to do that. It is not your responsibility to manage it for them