Heartbreaking confessions from couples about when they knew their relationships were over

Behind every breakup is a painful story about the time some one realised that a partner was not the one for him or her.

For some, such a time may come after a significant event. For others, it may hit them after a series of occurrences.

Acid Cow has compiled a series of revelations of people who, at some point in their lives, knew that their relationships are going to be over.

Have a look at them in the gallery above and see if you can relate to any of the confessions.