Lyric discussion by mycohl 

Also, cumbersome doesn't mean "big", it means "unwieldy". A 50-pound brick of lead isn't necessarily large, but it's hard to carry because it weighs so much. A card table might only weight 15 pounds, but it has swinging legs and is quite broad. Both of these are unwieldy and cumbersome.

I think that when he says "life is cumbersome", he is referring to the relationship and the various hoops they both must jump through, the dances and lies and all the other clap-trap that have become a part of it. Therefore, it isn't the pure thing that it began as, and it has become cumbersome.

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