Ruby has had her guinea pig (a male, named Jewels) for 6 months now, and I think that he finally likes her. We've recently moved the cage into the kids' bedroom, which I've read that you're not supposed to do, but it's definitely working for us. Ruby is able to pay a lot more attention to him and spends a lot more time holding him. He's still not the most affectionate guinea pig (is there such a thing?), but he hasn't bit her in awhile, so we're happy about that.