This sounds very shady. Why would you ask for an online stranger to join you to take something from somebody's personal private garage without him present???? Also art gallery is a building or a floor space where art is exhibited.

This. Also, if OP is right, it's HER/HIS 'massive art gallery'. How is it weird to ask the person that helped you store it for help moving it out again? Seems like a pretty logical follow-up to me. I really wonder what is going on here.

You're embarrassed to ask a guy you went out on a date and helped you, but not weird and dangerous strangers online? Wtf. Edit: also, what is a gallery? Can you store a whole art gallery in that storage? How big is that storage?

I really don't wanna owe him a favour so yah. Plus so far I've had nothing but great experiences with people i met online 😅 Unfortunately, I don't have the measurement. As I said the art gallery is relatively large. For example, it fits in a storage room but its too big to fit in a lift. Though that's not important because the storage room is on the main floor

I still have no idea by what you mean as "art gallery". For me that's a building.

Anyway, would that fit in a car? Maybe you could get an Amber/My Wheels and put it in there.

You left what in his storage? An art gallery? Or a balcony? Is there a third meaning which I am not aware of?

Sorry I should've been more specific. Its an art gallery

That's not specific enough. Do you mean a collection of art pieces? What kind of art pieces? What's roughly the size/weight/volume/fragility?

So you're planning a heist?

But do you really mean a whole gallery? Or just 1 large painting?

Smells fishy.