Lyric discussion by deralex 

Notice the "told me about the blue blue sky" (to promise something optimistically which propably will not happen) and getting a lemon tree (sour fruits) contrast.

The whole theme seems to be unrequited love and being totally alone without the person.

At the point "I'll get another toy" it seems like there should be a turning point (i can live without you, can you live without me, now you're sitting on the lemon tree), but this does not happen, but the YOU told me about the blue sky, but I only see a lemon tree motive repeats itself.

@deralex I don't think it is unrequited love, I think it is about general despair, hopelessness and depression. When he sings to 'you' it is possibly a friend or the 'you' could even be hope personified,

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