For the Idealist and the Homemaker, different priorities in life are likely to be the deciding factor.
If the couple is truly in love, of course, compatibility astrology is irrelevant and they will overcome their differences.
If she loves someone, he can do no wrong in her eyes.
This is because instead of doing this for themselves, they project this onto other people.
She cannot handle rejection and criticism and is herself also never rude or arrogant.
She too is a very possessive lover and can suffer from unknown insecurities and fears at times.
On the other hand, they depend on people for emotional support and encouragement.
A Cancer that is not fully self-actualized will need the constant support of others and will not be very independent but the Cancer that is 'evolved' and has properly harnessed their emotional issues will be wildly successful as an independent human being.
Since these two signs both seek stability and balance, you might think that Libra and Cancer compatibility is a sure thing.