Why are gemini men forgiving?

Probably, because they realize how short life is

Geminis think grudges are useless. They would rather forgive and forget.

The sun sign is only one sign in a person's chart, so you should observe gemini's on a case by case basis.

The gemini personality isn't really the type to take anything too seriously. (Gemini is also a mutable sign. Meaning that they can be very flexible and/or accommodating. Sometimes too accommodating.)

They're also not known for having a very long attention span. Usually they'll observe something, say "Oooh, that's interesting", make note of it and move on to the next thing that gets their attention.

If something happens, they're not likely to get pissed off because they're either detached, or they have already moved on to something else. 

Astrology says we’re all programmed at birth and can’t do anything about it. Blame the parents.

Forgive .. Maybe.. Just as long as we dont jave to be trapt around their abuse anymore.. And are free.. And not be stalked harrassed and blocled into a cormer attacked all day.. Sure.. That be easy.. I would never trust them again.. And no.. They arent welcome around me..