I have a first timer male this year, and I think he'd breed with a stick if it had a hole. =P But my female I am wanting him to breed with is definately not interested. She'll run away, hide her rear, anything to not cooperate.
I don't know if its the male, or if she just isn't in the mood. He does seem a little awkward when doing his "dance", but she's a first timer too and you'd think she wouldn't know talent when she saw it. =P
I don't know what to tell you, I've done the things you've tried too (except for the other male part, I don't have another mature male anywhere). Just keep trying, I guess. Maybe she just doesn't like him for some strange reason.