My spouse gets on my damn nerves, of course he does. But I've never ONCE thought about leaving him because of it. It's not a constant in our marriage, thank God, but yes, he has really tested me here and there. He's been the only one that I've been able to fight with and still think, Damn, I love that man.
It's one thing if it's constant, like they do it on purpose and have no boundaries at all when it comes to picking at you, but another thing entirely if you're having a bad day and take something the wrong way.
And yes, personal space, married or not, is needed, angry or not. I'm home alone all day, so that's my time. He comes home from work and just relaxes with a video game or TV show, that's his time. I go shopping alone, that's my time. He goes to a shooting range, that's his time. We don't do this when we are fighting, though.