How long the signs can hold grudges:

Aries: A day or 3.

Taurus: Give it a few months.

Gemini: Until they die. Maybe not even after that.

Cancer: Years and years and years.

Leo: Til the end of time.

Virgo: Three to six hours.

Libra: 5 second unless your in a heap of trouble.

Scorpio: Until hell is frozen.

Sagittarius: 2 days

Capricorn: A week or two.

Aquarius: At least a month.

Pisces: Two months.