Kaidan at the dinner on Citadel: I understand why you cheated on me but I forgive you.
Me, my femShep, my cat watching my playthrough, and a random c-sec officer who stands behind Shepard:
Cheating? Forgiveness? You're going to be a stand-up comedian, Kaidan, aren't you?
You met the commander you slept with two years ago, called her a traitor and a terrorist lover. And now you talking about forgiveness?
Before the meet on Horizon, it was a break, okay..
Not because of hot turian Archangel. Because (it's my canon) after Horizon Shepard reprioritize the importance of trust.
I believe it's one of the most important things to Shepard. Since commander found prothean beacon at Eden Prime and get those reapers visions, nobody believe its warnings. Apparently it's annoying to be a "local alliance weirdo", esp if you're right.
Anderson doesn't count. He's kinda a father to Shepard in some ways, and stays on its side anyway. But Anderson mostly in the backgrounds, so it's hardly can be called an actual support.
When Shepard dies and spend two years at Cerberus spa centre, Reapers threat didn't disappear. And then the Collectors joined the party. No one listened.. again. Alliance and Council left commander without support, so, yes, Illusive Man was an only acceptable option.
Returning to Kaidan. What was he said? GFY, Shepard, I don't work with terrorists.
What was Garrus said? Cerberus, huh? Okay, I'm with you, Shepard, no matter what.
Vakarian was a part of Normandy SR1 crew. He saw the Thorian, saw Cerberus experiments, Rachni.. he perfectly knows who he going to work with.
They're supporting and looking out for each other. Cerberus or not, commander can always count on Garrus. It's a respectful and truthful relationship based on friendship, what is much more important than an upcoming Shakarian thing.
So, no, Kaidan, it wasn't a cheating on you. You should've trusted Shepard, and see a person, not a Cerberus mercenary. That's a consequences of your decisions. Deal with it.
I like Kaidan as a companion and a friend actually. And I was pleased when he said that he wasn't right. I don't "hate" him as a character, not at all. But that dialogue on Citadel just pisses me off.