How many geminis have a long happy relationship?

Posted by Ohdear
My personality is typical Gemini and as such I get bored really easily. The only people I seem attracted to are the ones I can't have. So far had relationship with Aquarius we were both young he kept cheating, I left him. Gemini we were best friends and still are but I got bored. Cancer lovely guy treats me like a princess but no passion. Currently lusting over an Aries but found out he is already in a relationship.

What star signs make the best long term partners for Gemini ?