When does a relationship become too unhealthy to continue?

when theres more lies than truth

when you do everything for them, sky's the limit, and you find out that they're bad mouthing you behind your back.

When she pulls a gun/knife/cast iron skillet...and fully intends to use it.

When its obvious there lying!

When you have gone the distance for that person and they decide that they want to experiment with other people and continue to tell you that they love you and want to be with you but you know that they have no plans on stopping the lifestyle that they have made.

yep

Sounds like my kind of person!!!!

Lorena Bobbit ring any bells?

when its dangerous to your mental or physical self.

Trust me. You can HAVE her.

when your QRS wave is much wider than your PR interval.

When she turns into a "Fatal Attraction".

I totaly agree. I dont like or will I put up with lies.

Lies, infidelity and lack of communication

I think it depends on a number of things.

First and foremost depending on what problems are arising it's crucial for both to be forgiving. If both partners aren't forgiving of the past, they will never get past it and it will always remain unsettled and will eventually come back to always haunt eachother.

For me there are a few things that I don't dig. One is lying. I am adamant about staying friends no matter how the relationship turns out but with liars I don't even want to be around them. I associate them with stealing and being unfaithful and I can't put them into my social circle of friends if I can't trust them. So liars are usually kicked to the curb almost immediately.

For other problems even if both are forgiving, it really depends on what is tearing them apart rather than what is bringing them together. It's hard to just put things down because I haven't dealt with a lot of situations in life and I honestly never get a real answer why relationships don't work out.

when it causes change in your attitude towards others, changes your mood, or when becomes something larger than what you are willing live with or deal with.

When you have lost your sense of self, or feel you are losing it. When they frequently tell you negative things about your character and you actually start to believe them.