I do assume you know this isn't correct? Millions, likely more like billions, have been killed, annihilated, tortured, slaughtered, in the name of some god, including the Christian god.
That didn't have to do with 'humans kill and blame it on something', it's religion motivation, propagated, and requiring 'infidels' and 'heretics' to be dealt with in that manner.
The people who do this belief 100% that is what their god wants them to do.
Our history is full of hatred, murder, mass murder and so on all because of religion.
And this is still happening so the history we are making today isn't much different.

Non-religious guy here, coming at the issue from a social science perspective, saying that religion is just a tool that people in power use to manipulate others. Even without religion this kind of brainwashing that's led to holy wars would exist. They just wouldn't be holy wars. Religious texts are so vague and esoteric that they're easy to twist in violent ways.

Also, they've been corrupted by man - for example, what Jesus actually taught according to history, and how the Bible presents his life, completely different things. Linguistic analysis, archaeology, and other types of historical analysis have shown that the authorship of so many passages in holy books is absolutely not who is stated as having written it, and quite often you will have two adjacent verses that it turns out were written by different people.

Even without religion, you'd still have all of this violence and whatnot. Religion is just a really bare bones method for stirring up a mess. Humans naturally want to have something to believe in when their life is going down the *******; and both getting people to follow a massive organized religion, and getting people to commit violence are things you can do when desperate.

Edit: I'm not going to name any names, but some of the people here trashing religion believe in some absolute new-age nonsense meant to drain the wallet of wealthy white folks. To me, that's just as ridiculous as believing Noah's Ark or divine creation. A bunch of wishy washy nonsense for making middle/upper class white people feel special and spend money on garbage. Examine yourself before you make a sweeping judgment of something you clearly haven't studied about (note - reading the Bible isn't studying it, but taking an anthropology or sociology course is what I'm talking about)

Crystal, although your words are very true. The topic leans more to relationships.... So MsHarmony has shared her view on relationships.

Which isn't correct? Humans dont kill? What are the numbers? where are the data? Humans have bloodlust. Humans appease their bloodlust 'in the name' of anything from patriotism, to religion, to 'love'. BUt those are just as much axcuse as blaming clothing for rapes. Individuals make individual choices. Simple.

Yup, this is right on the mark.

There is a difference between killing in the name of a religion and what that particular religion requires of its followers.

In the case of the OP's ex-girlfriend, the OP does not cite evidence that she was being taught to kill or to harm people in any other way.