GF (37F), me 36(M)

She got an offer to move five hours away for a two month gig. We've been together for two plus years and I really don't want her to go and told her as much. She'd be gone all summer and that's not what I want in our relationship and I'm pissed that she's considering it. Problem is, it's a sweet gig for her and would be good for her career. I feel like I'm "Damned if I do, damned if I don't" in that if I put my foot down and keep her here, she'll resent me for the lost opportunity.

I know the initial RP reaction is, let her go and spin some plates back home, create some dread. Problem is, I strive to live RP within this relationship and I will really miss having her around. We get along great otherwise.

She keeps asking me what she should do. My reaction will be, "I've said my peace, this is your decision, not mine." I really feel over a barrel and would like some advice on how to keep my frame as a good RP BF and also keep her in town all summer.