Why do people assume Gemini's are cheaters and lairs?

With the exception of the time when I was 16 years old, and in High School, I have never once cheated on any of my partners. I dunno if it is my Scorpio moon that gives me integrity, but I would never betray my partners trust. I have broken up with alot of women though..... If I start having feelings for another, I will be honest about my feelings to my partner and let them go, so we can still be close even outside of a romantic relationship. Gemini's are kind by nature, and I understand some don't understand how their actions hurt others, but I have never met a vindictive or cruel gemini.

I have a couple of Libra friends who are both married, and OMG, those guys are cheat like there is no tomorrow. And they are totally shameless about it.

I may at times disappointed my lovers in the past, by not fully understanding their emotions, but I have never betrayed their trust, and have always treated them with respect, even though, someone of them may want me dead after I broke up with them to date their friends and even at times, Their sister >_<

But I was still honest to them about it, and I didn't cheat.

So if you had a bad time with a gemini let me know, or if you agree with me let me know. Just looking for insight.