Sure, the Fire Emblem series is known for its well-designed tactical challenges. The newest game in the series, Fire Emblem: Awakening, is no different.
But a lesser-known aspect of Awakening is just how romantic it can be. See, when your soldiers (of which you'll amass dozens) fight alongside one another, they get closer and eventually form stronger and stronger relationships. I mean "fight alongside one another" literally—they have to be standing on adjacent squares for this to happen.
Eventually, characters can even fall in love, and if they do… well, all sorts awkward things can happen.
Here's one example: Chrom, one of the primary characters, and the clumsy Pegasus Knight Sumia, getting to know one another better. Bear in mind that these conversation paths happen across all possible matchings (Male/Female, as far as I can tell) of characters among dozens of different warriors. Adorable.
(Sorry these pictures aren't great, I took them off of my 3DS XL screen. Stephen's shown me a better way to get images in the future, so my next ones should be better.)
For starters, you'll want to listen to this music, which usually plays when something romantic is happening. (Of note: the game's soundtrack is pretty great in general.)