My story is a thriller, where the MC has a healthy relationship with his girlfriend at the start of it, but by the end, the relationship ends in tragedy. No one dies, just a break up, because of all the immorality that has entered it as a result. The gf is not that major of a character, plot-wise, it's just part of the MC's background and development. But how can I introduce such a character without it coming off as on the nose, I guess you could say? Like I could show the MC leave the house and kiss her goodbye as he goes to work. Or I could show something much longer like how they talked about when they first met and show a flashback or something. I am just not sure how to introduce her or what they should talk about, without it coming off as plain... like I had to introduce her this way, without adding anything more to it... Does anyone have any ideas, for this type of character, in this type of story? Thanks for the input .