I considered myself an X-23 fan until the end of Misadventures of Babysitting where she turned down Hellion in a really unpleasant way. I've never expected Laura to have an intimate romantic relationship with Julian but damn that is a bad way to get your heart crushed. So that is when I lost interest in Marjorie Liu's run of X-23. Then, the Circle of Four came out which featured her as part of the team together with Red Hulk, the annoyingly uninteresting Ghost Rider, and my fave Venom. The story as it's self is great but when you're looking for character development you won't find it in here when it comes to X-23. I felt like it's the same character with no development for the past years since her debut in X-men Evolution (though I did kind of saw her smile and give a thumbs up which is on its own a development... I guess.) All in all, I guess I got tired of seeing her with no emotion with the same motif over and over again in every single issue she comes out of.
However, the Avengers Academy tie-in for the Avengers vs X-men did show some promise for character improvement (more so than the entire X-23 on-going) and I hope that my sickness of this character fades away because I truly love this character and I still buy all of the TPBs she's featured in.
*edit: Am I the only one who is sick of X-23?