It's easy to fall in love with someone, but building a love that lasts? Now that's the hard part.

On Monday, tweeters doled out their best relationship advice using the the hash tag #HowToMakeARelationshipLast. From those who say it starts with finding the right partner, to others who swear by "random cute surprises," click through the slideshow to see what they had to say, then add your tips on how to keep love alive in the comments.

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