Hi gordian knot
Grandiose thinking/actions can be part of the mania of bipolar disorder. Sounds like your wife is taking her medication, which is great. Has she started seeing a therapist yet? I think its so important to be able to talk to a counselor especially when newly diagnosed.
Sorry things aren't back to "normal" yet. Please continue to visit PC for support. Please don't hesitate to PM me if you have any questions or concerns.
Take care,
Dee