Titanic, because ships sink. All ships sink. Name one ship, above the age of 100 years old. That didn't sink, attempt to sink at one point during it's life or is currently in the process of sinking. Are all boats, ships and the like not in a perpetual cycle of sinking? Even when afloat, they try to sink. Just you do all kinds of extra leg work to deliberately keep them from it. It's like they wanna go under. It's every boat's dream to sink. Just kind of hinder their freedom. Until a good ol' gust comes, rips a sail off. Tsunami? Torpedo? Hole in the bow? Oh yes... she's sinking my friend. Boats are like all humans. Only being faithful to you during fair weather, once their is a hiccup, a wave in the sea, a painful moment. A moment where you gotta hunker down and show grit and loyalty. She's snapped in half like a cheap popsicle stick and you're on a life boat shooting signal flares at a giant boat trying to be saved by 300 pound icelandic, unbathed lobster fisherman.
Life is nothing but a sinking ship, and it's called relationship because ships sink. We are all jack. Titanic is a euphamism for life.