"Hag" Drama

Country Girl has decided to take on a new crusade as a gay rights activist.
Great.

She wants to write a book about homosexuality.
Great.

She has joined the local chapter of PFLAG.
Great.

We (MBA Man, Fly Boy, me and the rest) support her in her endeavors and value her as a friend and ally. However, it seems like every conversation I have with her now turns to homosexuality. She has taken her interest in and concern for us to a level where it seems she's losing sight of who we are aside from being gay.

I love her, we all do, but we're tired.

How does one tell a dear friend when enough is enough?