Why did your last relationship end?

I'm looking to gain insight on the male and female perspectives in relationships and what can lead to the relationship ending. These answers will be used to help me on a project I am currently working on.
It was their fault
Vote A
It was my fault
Vote B
We both were at fault
Vote C
Select age and gender to cast your vote:
6 mo
If you are comfortable with adding more info to your comment I would also like to know how things were in the beginning and when did you start to see signs that the relationship was going to end.
Why did your last relationship end?
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