Lack of trust.
Not having a bond, if a marriage is held together by "things" that aren't each other. If a marriage is held together just for example the childrens sake, the mortgage, appearances etc. A marriage should be held together by each other, if everything was removed the couple should want to stay together.
Just my 2 cents.
A marriage isn't an entity that exists on its own. It is entirely a product of the participants. It is toxic if you're toxic; it won't be if you're not. As for what constitutes a toxic spouse ... did you have anything more specific?
There are very few occasions where marital problems are one-sided. If a marriage isn't working, there's probably something each spouse can do to push in the right direction.
But one spouse cannot be the only one pushing; it takes two working together. If you can't work together at the same time then it's over.
One of the main problems marriages have is that it is made up of two individuals. When it gets to the point where any one individual cannot or will not look at things from the other individual's perspective then there is going to be problems. When it gets to that point things will start becoming a tit-for-tat battle. "Well he/she did this so I'll do that".
To start fixing the marriage you have to both agree to forgive and not bring up the past. This is one of the hardest things to do especially when arguing.
Take the biggest problem (one or maybe two) the hot button thing and work on that first, ignore the rest while you work on those; again this is hard as it is not (really) just one or two things but a whole slew of things that have built up over time. Once you get that thing down work on the next 'hot button issue' but don't forget the previous issue(s). But, again, you both have to agree to this in writing with signatures.
BUT, what do I know, I'm having difficulties in my marriage so take it for what it's worth.
I disagree, with a few exceptions. One spouse can very often change the entire tone of the marriage ... generally, by visibly and intentionally putting their spouse before themselves, by giving the wife/husband what she/he needs even if you're not getting it back. By sacrificing rather than struggling. It ain't easy in a toxic environment ... but, it can right the ship.
Like I said, there are exceptions. But, most people who think they're an exception, haven't tried it ... and probably aren't.
I'll back that up, having experienced some very difficult times in my marriage. Thanks to some dedicated communication from both of us, it's better now than it's been in years.
A toxic marriage is one that harms, rather than aids, the well-being of the spouses and/or their children.
I very much agree with this definition. Dysfunctional is not the same a toxic. There are some situations that you can "live with", but a toxic situation is one that is actively destroying the participant.
One that involves contempt. That's also a doomed marriage.