All the water signs: Cancer, Scorpio and Pisces, can be possessive and jealous and it’s tied up primarily with emotional attachment. Pisces is probably the least jealous of the other two and generally feels empathy and compassion for a lot of people. Taurus is another sign known for its need to possess physically (earth) and has a deep need to feel secure. Possessiveness derives from insecurity and, therefore, triggers the need to maintain (fixed) stability. Taurus can be extremely territorial around a partner, and may view them as a belonging, and expects total loyalty and fidelity and is unable to abide anything else.
Scorpio has long been known for morbid jealousy, arising from his deep suspicions, and the 8th sign of the zodiac fears abandonment and emotional betrayal and needs to form close bonds with a select few. Another sign known for its jealousy is Leo. The king of the beasts hates betrayal of any kind and takes it as a personal insult. The least jealous in the horoscope are most definitely the Air signs, they seem to be happy with friendship and to keep things well ventilated, allowing freedom and movement of expression. However, according to C.E.O Carter Essays on the Foundations of Astrology “Libra appears to be jealous because they need to be liked. Mirror, mirror on the wall who’s the fairest of them all!” It would never turn into the real pathological jealousy of the other signs, and has much to do with likability. All the fixed signs possess fixated natures and find it hard letting go of a loved possession, emotions, loved ones and ideals. The exception being Aquarius (Air) and they need to feel liberated, likes to be involved in friendship and wants space and can hold others at a distance. Perhaps Aquarius would find it hard letting go as friends and wants to maintain the relationship in this way.
Quotes on Jealousy by various authors:
“This is a Scorpio emotion in it’s true form though there are allied conditions that closely resemble it in their outward manifestation. For example, the kind which usually vents itself in complaints that “it’s not fair”!” and which is based on Libra afflictions. There is also a Leo condition, based on the sense of offended dignity, a Cancerian form deriving from the possessive instinct and so forth.”
“Of course, he needs something in exchange for all that loyalty. For one thing, he needs loyalty in return. Leo, male or female, is a jealous cat, and won’t tolerate smaller fry pursuing his chosen mate. he can be very obvious and not a little rude about insulting or removing challenges. In a way, he enjoys the contest, provided he’s on safe ground since this kind of knightly combat suits his image…. Betrayal, which is deeply wounding and rarely forgiven. Leo has a naive heart, and a wonderfully soaring idealism. Betrayal of trust is truly horrific to him. Where Capricorn expects it and Scorpio suspects it constantly, Leo simply can’t believe it”.
“Cancer, a sign of intense feeling needs, has a strong tendency to live through loved ones. Eternal fidelity. Cancer is a possessive sign – as possessive as Scorpio is traditional. But Cancer is more subtle about it”.
“Cancer is as capable of intense passion as Scorpio. But because it is a more vulnerable sign, Cancer tends to be more discriminating about where that passion is expressed. And very slow to commit it, because trust is terribly important for all the water signs.”
“Many Cancers will remain uncommitted because of the gruelling experience a separation would entail. The disruption of the nest is a true trauma for Cancer, even if he deeply longs for freedom.”
“Cancer will rarely make the decision to go. First of all emotional confrontation is too terrifying. Secondly other people’s opinions are too terrifying, they would much rather become quietly, progressively unpleasant until your the one to throw him out. Then he doesn’t have to feel guilty.”
“Betrayal of trust goes deep with water signs. Rationally they may excuse it. Emotionally, they never do”.