Gemini and cancer find in each other immediately, a warm reception.
In other words, Cancer who truly loves to be in love, loves the security of a relationship. It’s very giving, very nurturing, and astrologically, Cancer is known as the sign as mothering. Whether or not the Cancer is male or female, there is a quality of being a nurturer, a protector.
Now, what Gemini also looks for is new experience. And so, after the first flush of fall into this lovely, romantic, and vivacious affair with each other, they are going to start looking for different things. The Gemini doesn't want to be tied down. Cancer likes to be tied down; not exactly imprisoned, but safe in this cocoon, in the downy nest of being in love.
Gemini is looking for new friends, and some versatility in life, for something that's new all the time- asking, "What's new? What should we do now?" So, their energies immediately begin to go in different directions. I'm not sure that they can really work this out long term.
Short term, it’s a lovely affair, because they find in each other something that's interesting, and something that they think they need. And then, they find ultimately that this is not what they need. For example, the Cancer needs something more permanent. And the Gemini needs something that is more open and spontaneous.