I'm a Gemini. Definitely two personalities. Everyone I know has only seen the "good twin". I know them both!
At one point of my life, more than 30 years ago, I became involved with lots of married men. Probably looking for the father figure. Met them in hotel happy hours. Saw them once or twice before they left town. No one knew but me. I was too young, stupid and care-free to realize what a mean, thoughtless thing I was doing. But what I want to share is something that happened to me....
Christopher was cool. A Federal Judge and a business owner from somewhere else in this country. Met him on a trip, saw him on the sly. Then I found out his wife had cancer. Bad cancer. And the reality of what I was doing hit me hard. Real hard. Remember, I have a good twin. And that bubbly person was doing volunteer work with handicapped adults, seniors,... So I called it off. The wife was sick, I couldn't handle it anymore. He said "Okay".
But some people might not be that lucky.