I googled some time ago. But I don't like google any more, so I don't know about other search engines. I've also seen Crowley mentioned in a book or two, I think the last one was "The Pink Swastika" by Scott Lively and Kevin Abrams, which is a fascinating and well-researched read about homosexuality and the Nazi philosophy.
If Crowley had a girlfriend, I guess he was all over the map sexually. But it's pretty much known that he was also into boys. And very weird dark practices. He was a very vile sicko.
And just see - Hubbard wasn't even good enough for him!
Any good or interesting books out thereregarding Crowley?