I took my ex on surprise trip to US. I spent months planning, worked my ass off to be able to afford it. Flew business class via British Airways and we went to
California (LA, San Diego) then stayed in a lovely five star hotel in Vegas. Saw the Grand Canyon and that, then flew to Ohio and visited Cedar Point. That big theme park with loads of rollercoasters and crap food. Then drove to Buffalo, Niagra etc to see The Falls, then to Mt Morris, NY. Visited Letchworth State Park. It's known as Grand Canyon of the East. It's all foresty and really nice. Several waterfalls. Then went to New York City. Our hotel was situated in Times Square. $800 for like 3 nights. Amazing. I've also visited San Fran (sorry I know the locals hate it being called this)
Was really romantic. Cost me many thousands. Broke up on our last day in NYC.