So obviously every couple has a different dynamic, but how do YOU help your couples to stand out from each other to keep their relationships from appearing too similar to each other? I feel like in a lot of shows relationships tend to fall into tropey categories that almost suck the life out of them.
One of the main notes in my experiences for keeping relationships feeling real and natural for the characters is keeping your characters personalities in the forefront, as most (healthy) people, won't become different people, just because they're with their lovers, and that's going to affect the way they interact with each other.
My two primary examples from my released works are Aaron and Eliza, and Kattar and Alicia, and these two couples couldn't be more different.
For one thing, while Aaron and Eliza's relationship largely revolves around him trying to wrangle her over-active imagination, Kattar is paralyzed, so a good portion of his and Alicia's relationship has to navigate the difficulties spawned from that.
I personally like writing mixed race couples and want to see more of them in fiction. The difference they encounter just because of culture, or literal physical differences (say, burning rather than tanning, having kinky hair) all affect their dynamics. Aaron complains to Eliza about not being able to see himself in the bathroom mirror as they're getting ready in the morning because her hair is "taking up all the real estate." She decided not to take on his last name because it's entirely TOO common, and bad for marketing.
On the other side of the spectrum, I'd like to see (and am writing) more couples where one or both partners have some sort of disability, be it mental or physical.
Too often I feel that media is keeping ideas segregated. Couples are still largely mono-cultural, and people with disabilities rarely get the opportunity to play anything other than support roles. Especially if they have a learning disability, they virtually never get to be the leads of romances.
So how do you write romances? Do you ever include disabled people in your couples? What about mixed-race couples?