Gemini is known for being disloyal due to their tendency to get bored easily and seek out new experiences.
Sagittarius is also known for being disloyal as they value their freedom and independence above all else.
Aquarius can be disloyal as they tend to prioritize their own needs and desires over their partner's.
Pisces can be disloyal due to their tendency to idealize their partners and become disillusioned when reality doesn't match up.
It's important to note that astrology is not a definitive predictor of behavior and individuals of any sign can be loyal or disloyal.
Communication and trust are key in any relationship, regardless of zodiac sign.
Ultimately, it's up to each individual to make a conscious effort to prioritize their partner and maintain loyalty in their relationship.