My hair is the same.. much curlier in front (3a) and wavy in the back (some days it's 2a/b, like today). I've never gotten stares, maybe you're just paranoid? I don't find different curl patterns to be odd, it's very normal. Hair does what it's going to do. Do you have layers? Is it shorter in the back? That's mainly my problem. You could pin a small portion of the front back, and that might help break it up a bit. Try different styles. Also, you might want to try a different hair cut.
2c-3a - med-coarse - normal-high porosity - high density

NP/LP: CJ Daily Fix, KMF Whenever Conditioner/ Giovanni TTTT
RO/LI: Sevi Pumpkin Seed, CJ Argan & Olive Oil, JC Too Shea, Aussie Moist
DT: Coconut Oil + scalp massage
STYLER: Ouidad Climate Control, KCCC, SS Curl Enhancing Jelly, JC Rockin' Ringlets
COLOR: henna, amla & indigo
: glycerin in high/low dews, polyquats, parabens