/u/Ravenamore on Anyone have a rich uncle w/ a soft spot for romance to pay for skywriting a proposal? He’s been begging for a year & only needs A$4.7K but the message could be longer…ugh, so expensive but worth it! Also need $ towards a A$15K wedding. St

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I would assume she's got a place to live, so this might be him assuming a grand romantic gesture on his part will guilt her paying for a place for the two of them to move into together, and he's considering that to mean "move in with him."