Belle is always knocking on Rumple's door, hoping he'll give their love a chance: first in the Dark Castle, when she tries to find out more about the Dark One; then in Storybrooke, when Mr. Gold takes her in, but still keeps his secrets. After Rumple's death and her return to the Enchanted Forrest, she goes back to the Dark Castle and knocks on his door once more, hoping he'll be there to open.

DO YOU WANT TO HAVE YOUR TEA NOW?

Belle (Enchanted Forrest):
Dark One?
(Knocking)
Do you want to have your tea now?

-Out here, by the light?

Quit magic and open this door,

I'm longing for

the story of your life.

Is like you're always scheming

to get somewhere.

You know you can tell me why.

Do you want to have your tea now?

You could use the chipped tea cup.

Rumplestiltskin:
Go away, Girl!

Belle:
Okay, bye...

Belle (Crocodile):

(Knocking)
Do you want to have your tea now?

Or visit town? That would be swell!

Here in the house there isn't much to do

I've tried your books, but none of 'em ends well
(Don't do it, Juliet!)

You're holding back from me,

aren't we past this?

We already lost much time...

(You don't need power. You need courage to let me in.)

Belle (post Going Home):

(Knocking)
Rumple,
I just hope you're in there,

though people tell me it can't be.

They say it's over, but it can't be true,

I'll always wait for you, come back to me.

My dear, my beast, my lover,

My one True Love,

How could you leave me here?

Do you want to have your tea now?

Rumple tries to do well by Belle, but often it had bad consequences. In Crocodile, he knocks on her bedroom door to woo her into forgiving him; when she loses herself, he tries to make her remember who she is; and when she's in danger, he makes the ultimate sacrifice.

WOULD YOU LIKE YOUR CHIPPED CUP NOW?

Rumple (Crocodile):
Belle?
(Knocking)
Would you like your chipped cup now?

With dinner and desert.

No need to be so angry now,

I'm sorry, I'm

just scared you might get hurt.

I'm sure I can be better,

you know I can.

You just have to show me how.

Would you like your chipped cup now?

It doesn't have to be the chipped one...

Belle:
(climbed out the window)

(didn't hear a thing)

Rumple:
Okay, wow...

Rumple (In The Name Of The Brother):

Could you hold your chipped cup now?

Now close your eyes and think it through.

Soon your memories will come back to

your head, of books and beasts and magic I can do.

(Just look at it)

I don't think you're trying,

Just one more time,

Please you can't leave me here...

(Crash crash crash crash sob...)

Rumple (Going Home):

Belle,

I know you can hear me,

you know there is no other way.

All I wanted was to be with you,

but villains don't get to have it their way.

Dear, you are my beauty,

My one True Love,

But we never had a chance.

Would you like your chipped cup now?