A short training montage later, the new Wonder Woman is ready to go back to helping Steve ... but then Steve dies anyway, because let's face it, he was a moron. Even though her dead boyfriend was the entire reason that she didn't go with the Amazons, Wonder Woman doesn't even think to follow them into the other dimension. Instead, she opens a mod boutique, becomes a part-time private eye and starts traveling the world with her kung fu master.
Wonder Woman #189 (1970)
"I've forgotten why I decided to become a superhero!"
In one adventure, she fights a gang of lesbian hippie child-slaving jewel thieves, probably as a result of the editor asking for a story "ripped from the headlines" and the writer literally combining several news items together. It's like they were so desperate about doing topical comics that they completely forgot about the "doing Wonder Woman comics" part. In most of these issues the name Wonder Woman isn't even mentioned outside the cover, since the whole time she went by her alias, Diana Prince.