There are some similarities between you, and also some significant differences in your temperaments and needs.
Both of you are thoughtful, considerate, sensitive to, and aware of, other people's needs. Having good personal relationships is very important to both of you, and you make harmony and pace in your personal lives a very high priority. You both avoid conflict and confrontation if at all possible.
The differences are thus: Libra is more objective, rational, and fair compared to Cancer, who is subjective, emotional, and biased by personal sympathies and loyalties. Though seemingly sympathetic, Libra can be surprisingly cool and intellectual when problems arise between the two of you. Cancer responds very personally and emotionally. Libra needs more communication and conversation than Cancer seems to.
Also, Libra wants to relate as an equal and a peer, while Cancer wants to mother or be mothered by a partner. So Cancer is more comfortable with becoming emotionally or financially dependent on a partner (or having the partner dependent in that way), while Libra wants a more egalitarian relationship. These differences can cause misunderstandings between you, but rarely are they a source of major conflict.
Both of you try very hard to please and accommodate people, especially your love partner, and you are both very sensitive to others' approval and opinion of you. Because harmony in your personal life is so important to both of you, you go out of your way to try and make one another comfortable and at ease. Both of you, in fact, feel very threatened by interpersonal conflict and you sometimes avoid confronting the more thorny problems or underlying differences in your emotional natures, however.
Cancer wants and needs security, reassurance, a home, a sense of belonging, close family ties. Cancer needs to be needed, is inclined to smother loved ones, and may be more of a mother or father than lover to Libra. Libra, on the other hand, wants a romantic partners more than a parent. So differences may arise regarding loyalties to family (Cancer) versus giving time and attention to the two of you as a couple (Libra).
Also, Cancer is often more emotional and "irrational" than Libra, who is usually more even, cool-headed, and reasonable than Cancer is.
You are inclined to become very annoyed with each other over minor differences. Irritations over small differences of opinion and a tendency to be inconsiderate towards each other can make you both feel uncomfortable. These annoyances are not likely to lead to major upsets or seriously threaten the stability of your relationship, but they are a nuisance. You must learn to respect the differences in your temperaments and personal habits, and strive to be aware of each other's needs.
You enjoy going out together and you will develop a love for the same friends, groups, and social activities. As a couple, you are outgoing and friendly, and will meet lots of new people and share many new experiences together.
You may join clubs and associations or spend many leisure hours at your favourite haunt. Catching up with others, brings a lot of meaning and satisfaction to you both. Lots of social exchange, chit-chat, gossip and fun times are your cup-of-tea.
Circumstances develop so that the two of you become very active together in community affairs, socialising, or political/social action. Together the two of you explore many social circles and develop a wide variety of friends and acquaintances.
The romantic and sexual attraction between you is almost irresistible. This relationship is one that was probably "more than just friends" from the start. The intensity of your feelings for one another is unlikely to fade over time, and you find much fulfilment in your love for each other.
You love each other very deeply and the attraction between you is very strong, but your relationship is also prone to emotional ups and downs. It is not unusual for the quality of feelings that you have for each other to be quite different and this can lead to misunderstandings. For example, Libra may be in a romantic mood at a given time while Cancer is feeling friendly, but not romantic. The roles sometimes reverse, and you find that your feelings frequently just won't synchronise. You also easily hurt each other's feelings, not realising how much the other person loves and cherishes you. By being flexible and adaptable, and really trying to sympathise with each other, you can avoid these problems most of the time.
You work together very harmoniously on daily tasks and you can communicate very clearly and openly to each other. You "speak the same language" and you have a knack for quickly understanding each other.