Being through quite a few relationships and I'm still dumbfounded and probably in self-denial when it comes to breakup.
Just how do you know when exactly that it's not worth pursuing anymore?

I need a beer or two.

 

The second I question the validity of a relationship.

 

when one of the following has been true for a while (imo at least a month)
1. dont love her anymore
2. are not in love with her anymore
3. dont like her anymore
4. are not physically attracted to her

this is assuming all three have been true throughout your "relationship"

 

The second you start to feel like you can't trust the other person.

 

what makes it valid??

If it helps, I was dealing with someone with a lot of insecurities. There lots and lots of doubts with everything.

 

Well like Dub said when you can't trust the situation anymore or have any doubt about honesty between you.

Also what Chuck said, if you dread seeing that person or aren't happy to get phonecalls from them. maybe even find yourself avoiding contact with that person.

 

also if you get the feeling she feels one of 1-4 for you
then you gotta be a man and end it

 

I think you've hit it on the nail.

 

do you ever feel like doing this?
http://roflamethrower.com/uploader/uploads/crazy.gif

but yeah if she wont do it then you do it
stop wasting both your times

 

was very close to it.

Gotta patch a hole in my drywall though.
I'm almost 25, and the women are only getting more and more evil.