Well, it might include things like old-fashioned dates, like going to drive-in movies or having picnics. The style of clothing and music from that era could play a big role too.
For a 60s love story, you might expect to see characters influenced by the political and cultural climate of the time. Maybe they have to deal with the draft or the changing roles of women. Also, the cars they drive and the places they go on dates would be typical of that era.
Perhaps loyalty was an element if there was someone who stuck by him through his early football success. It could be that they shared dreams of a future together. But then his criminal actions would have put a huge strain on any relationship.
One main element could be loss. Since 9/11 brought so much loss, the characters in the love story might have lost friends or family. This common ground of loss can bring them together. Another element could be the sense of survival. If one or both of the people in the story survived the attacks, that experience of survival can strengthen their bond.
Well, a love story might have two people meeting by chance, having a spark of attraction, and then facing some challenges that test their feelings for each other.
One possible element could be adventure. Since Ace was a pirate, his love story might involve sharing adventures on the high seas. For example, sailing to uncharted islands together.
Perhaps secrecy could be an element. Given his life as a Death Eater and his undercover work as Mad - Eye Moody, any relationship he might have had would have to be kept secret. Another element could be conflict. His loyalty to Voldemort would surely conflict with any love he might feel for someone. The person he loved might be against the Dark Arts, creating a lot of internal and external conflict.
Definitely the city's landmarks. For example, the Liberty Bell could be a meeting place for the couple. Also, Philly's famous cheesesteaks could be part of their shared experiences.
Betrayal can be one. For example, like in the story where one partner cheats. It's short but so sad.
One element could be separation. For example, if one of the characters gets trapped in a far - away dimension like the Nether, and there's no way to get back easily. Another element is betrayal. Maybe one character is tricked by an evil player into thinking their love is not real. Also, death is a big element. If one character dies and the other has to keep living without them, it's very sad.
One element could be the meeting. Maybe they meet while chasing the same prey. Another is protection. They protect each other from threats like bigger animals or hunters. And sharing, like sharing a den or a good hunting ground.
Friendship is a key element. In MLP, most love stories start from a strong friendship. For example, two ponies might be friends first, helping each other out in daily life like Applejack and Big Macintosh often do for other ponies in Ponyville. Then feelings start to grow deeper.