This girl wants to move in and I'm afraid she will lose respect for me if she sees it. I have had many great times with this blow-up doll. where will she go?

Deflate it and hide it somewhere.

In a puff of smoke.
Burn baby burn.

dress her up in NICE cloths and tell your girlfriend you got the doll in an Easter basket when you was 6 and always kelp it because it was a loving gift from your mother…{might work?]

She goes in the trash along with the memories. She's fake, cold and plastic.

deflate her…it's time.

Give it to her good one last time, kiss her a farewell and promise her that maybe you could be together again in the future or at least occasionally rendezvous, deflate her, and then hide her somewhere safe in a box. Good luck!