For instance, when writing a romance novel, how would one create a good relationship between the two people that is both believable, realistic and captures the audience's heart?
make it start slowly, and not go perfectly
The hero(ine) of your story has to have some sort of flaw in personality. That makes them seem socially awkward in some way. Then for the other person in the relationship, the guy usually is seemingly perfect, but has some sort of set back that makes you think "Oh great" and it usually causes trouble spots.
Both people need to have flaws and screw up every once in awhile. Good relationships take work, and not just one person can hold the union together. If your couple is falling in love for the first time, don't make it happen too quickly or easily. I'm not saying that people in the real world don't fall hard and fast for one another, but it rarely happens if you've only had one awkward conversation with a person. Take, for example, Twilight and the other teen novels that are out now. I've never known anyone to take one look at a person and decide "Oh my god, I love him/her"--especially after that person has snubbed you (i.e. the infamous Edward in the cafeteria scene). There have to be fights and arguments in a healthy relationship--and I'm talking disagreements, not knockdown, drag-out battles. People who spend all of their time together tend to get under each others skin after awhile, so fighting is normal. But your novel can't be ALL negative either. Insert those tender little moments that allow your readers to see why these characters care so much for each other. It doesn't have to be the typical guy-singing-outside-her-bedroom window moment. You can have the character do something as simple as leave a note for the other. Things like that really get people.
I hope this helps. Good luck!
Most often you have to be in love to be writing about love,Thats the easiest way,because then your just "pouring your emotions into words while turning converting them to paper if your not dating anyone what would like to happen? think about what would you like a guy/girl to do for you?How would you like to feel? what would you like to be doing with that person?imagine just going tout on a walk and think of words and then whoever you wanna write about it can be anyone of inspiration(Crush,or just anyone whose close)So Imagine that you were dating what would you think would happen,but don't over exaggerate and go quick with things like"your instance gonna kiss"your gonna get married"nothing stupid.I just think of my boy friend and me,like when we go out for lunch,Whenever we hold hands,how open we are with each other,how honest we are,How great and cute he looks,how sweet he is,So dont take it from the movies but just imagine,spending time with someone that you like,and make it sweet but dont rush it!