The whole plot revolves around her having an amazing insight into life and people. If I can't convince a reader to believe that, they won't believe the rest of the story.
For my own part, I find that writing while thinking whether my character is convincing causes me to write an unconvincing character.
I don't think she's a Mary Sue as of yet- she may be insightful and have a nice looking boyfriend but she's primitive. If she wants something, she makes it clear, and she ends up being manipulated.
I listen to the voices of my characters. In other words, I let them speak to me rather than pondering overmuch how they come across. When I am having a problem with a character's direction, I get up and walk away from the keyboard. I let myself relax. When I return, I close my eyes and say outloud, "I am [insert character here]. I have her thoughts and feelings, her experiences and emotions. How do I handle this situation?" I put my own ideas of life out the window and let the character lead instead. This usually works, but if it doesn't immediately, then I shelve the story for the evening and work on something unrelated. Coming back to it fresh the next day also can cut through the static.
That's the other thing. How do I show how she is mistreated without making her look pathetic?
By making her real. Sometimes when I've written characters that end up being mistreated, I find myself judging them in the writing which in turns causes the reader to see them the same way.
Such as this:
Sharon walked into the coffee shop and paused just over the threshold. Her eyes widened as she took in the sight of her boyfriend and her best friend engaged in a kiss. Humiliated, she turned and ran, blinded by her own anguish.
This is how I'd view this situation as an outsider. Sharon is certainly humiliated, but that's not true to her character. It's my thinking for her, telling myself that she'd naturally be humiliated. But this is not allowing Sharon to tell how she feels herself. If you are really going to write this scene, you need to put yourself in her shoes and feel it just as she does, which may be uncomfortable.
So if I closed my eyes for a minute and let the character speak, I'd imagine Sharon as 5'7", blue-eyed with a fair complexion and amber-colored hair. She's wearing a green peacoat with a light orange scarf, jeans and tan loafers. Her face is pixie-like and whimsical and smiling slightly as she thinks about getting that first hit of coffee. She is wearing a blue topaz ring on her right index finger that matches the spiral silver hoops in her ears. And listening further, she has a tattoo of
David the Gnome on her left foot, which was a show she enjoyed watching with her father. So I am now this person and I am about the experience the heartbreak of my life:
Sharon opened the door to the coffee shop, but paused just over the threshold. The scene before her unfolded in slow motion, rolling over her ever thought until the very breath stilled in her chest. She saw her lover's hand reach out to caress the face of her best friend at a corner table. This his lips, the same lips she loved so well, met Julie's in a soft kiss. Their eyes drifted closed as the contact deepened, swelling to a crescendo so horrifying that Sharon backed out of the shop in denial. Her hands fluttered by her sides erratically as her heart stammered, then broke in two. Blindly, she walked down the street seeing nothing except the kiss, feeling nothing except the pain...
Real characters speak for themselves and show it. Even with the best of intentions you will have some reader out there who will think Sharon should have gone in and tackled Julie, body-slammed her on top of the table, then broken the lover's nose. So don't think about them; think about your character and how she feels. Make her real to
you.
I hope this helps. If not, then I ask the Muses to send you as much inspiration as you need to further your story. Enjoy the rest of your evening, love.
Respectfully,
Olivia