
You should probably avoid yaoi or erotica with a rape tag. In some stories, rape is a metaphor for seduction or romanticized--not because that's how we should see int in real life, but because that's the fantasy and it serves a different purpose int the story. It's cool if you don't like it, but the rape tag doesn't always mean rape as trauma. It can mean rape as another type of story element.

"Rape is not a way to get someone to realize their 'affection' for you"
This is where you are wrong, my friend. I am not excusing rape. I am talking about fantasy rape.
Let me quote this, "Rape, used as an essential plot device, serves the purpose of bringing the two characters together in a romantic relationship. Rape functions as the catalyst for romance, speeding up the process of falling in love while providing explicit sexual scenes to arouse and pleasure the viewer. Because sex is the plot in yaoi , unnecessarily long relationship developments are eliminated. However vulgar rape may seem, it effciently creates sex and romance in yaoi . Once the two characters are together and the feelings are mutual, there ceases to be a plot-based need for “rape as an expression of love” between the seme and uke and the sex thereafter is entirely consensual."
source: http://www.academia.edu/3993473/The_Prevalence_of_Rape_and_Child_Pornography_in_Yaoi
I don't have a problem when rape occurs in manga. I have a problem when the rape is dealt with as something easily excusable and dismissed humorously by the characters or the progression of the story line. Rape is not a way to get someone to realize their 'affection' for you, and rape is still rape even if the other person physically felt pleasure from it. Even if the characters are cute/hot, I don't find it enjoyable to read such things.