I've always had difficulty with this process. I'm good at the "random hookups" and the "one-night stand" stuff in my writing, but I have had trouble being able to accurately detail a loving, committed relationship. What kind of dialogue should I use? How often do the characters need to say "I Love You"? What specific things should I include when describing their relationships and what should I include in scenes when they are together, whether alone or with other people? Any help and advice is greatly appreciated, as always.