Why didn't Sam have a problem giving The Ring back to Frodo?

[SamwiseGamgee]

Davem, that's a really interesting idea you brought up about Sam overcoming The Ring's temptation in Lothlorien:

'There's some devilry at work in the Shire,' he said. 'Elrond knew what he was about when he wanted to send Mr. Merry back.' Then suddenly Sam gave a cry and sprang away. 'I can't stay here,' he said wildly. 'I must go home. They've dug up Bagshot Row, and there's the poor old gaffer going down the hill with his bits of things on a barrow. I must go home!'
'You cannot go home alone,' said the Lady. 'You did not wish to go home without your master before you looked in the Mirror, and yet you knew that evil things might well be happening in the Shire. Remember that the Mirror shows many things, and not all have yet come to pass. Some never come to be, unless those that behold the visions turn aside from their path to prevent them. The Mirror is dangerous as a guide of deeds.'
Sam sat on the ground and put his head in his hands. 'I wish I had never come here, and I don't want to see no more magic,' he said and fell silent. After a moment he spoke again thickly, as if struggling with tears. 'No, I'll go home by the long road with Mr. Frodo, or not at all,' he said.

I also definately agree with you that Sam's love for Frodo far outweighed anything else. Sam, as a character, is almost completely defined by his love for Frodo. Sam wouldn't be what he was without Frodo, and equally Frodo wouldn't be what he was without Sam.
Saucepan Man, on a little aside I felt the scene in Cirith Ungol would have been fine had that deep heartbeat not been present, you know the one which is spoken about in the FoTR EE bonus dvds as being a kind of theme tune for The Ring. That, of course, is because I always read the text that Sam wasn't being tempted, but that, I guess, is almost completely subjective. I in fact think the films are great, and hope to contribute to the defense of PJ in the trial on ME Mirth.