Jealousy affects most people at some point. Jealousy is multifaceted, involving loss, abandonment, fear of rejection, humiliation, misery, and fury. A relationship threat causes jealousy.
Aries are often insecure, despite their confidence. Aries relationships are emotional rollercoasters. Aries like the drama.
Tauruses are stubborn and don't express their emotions. They're sensible and rarely jealous.
Geminis expect their spouses to stay faithful even when they know it's hard. They'll tell you they're envious so you'll spend a lot of time soothing them.
Cancers rarely feel envious because they're in love and anticipate the same from their partner. They'll harbor jealousy until it evolves into resentment.
Don't focus on anyone but the Leo. Leos get jealous over almost everything. They don't think they should hold back.
Virgos are envious yet keep their emotions in check. Their actual feelings are in their eyes.
Libras crave friendship and peace. They are insecure and jealous. They'll hide their envy until they can talk themselves out of it to avoid conflict and anger.