Lets see, in her own book
Diana has a healthy relationship with her big brother Lennox and her sister Zola
She just found and befriended a new sister Siracca
She's currently rehabilitating a deposed Hera
She got conned by Hermes, the guy who ran around with her for 10 issues and vowed to get the baby back and didn't collapse under her own angst
She went to Hell, refused to marry Hades, shot him with a love bullet and came back
Versus in Justice League
She claims Cheetah was the first and best friend she has ever had, who turned eeeevil, boo freakin hoo
And so she is forever alone girl and can't trust anyone else
And so Superman has to teach her about "life outside the Watchtower" as he calls it and takes her to Smallville to show her his normal life
I just wish there was a little more coordination between the Wonder Woman we see in Justice League and the one in her own title.
BTW the Steve Trevor in the Wonder Woman movie was a joke and a way for Gail Simone, or her co-writer, whoever to force in some "gender issues" and have Diana claim that the world of man is oh-so-disgusting.