Relationships end, yes, but you don't need to rush off and marry the next poor mug. New relationships take huge time & effort and quite frankly that effort should be put into your DC, not a new partner.
Who says it's the next poor mug?
5 years isn't rushing of either. I knew my DH for 2 years before we got married. That wasn't rushing in my opinion.
Just because you get married again, doesn't mean you arent putting effort in your children either.
Staying in miserable relationships is a poor example to your DC. The children grow up not knowing what a healthy loving relationship looks like.
That in turn can lead them to make poor relationship choices in the future.
Gone are the days when you stay come he'll or highwater and I reiterate that I'm an advocate of marriage and being together where there are children.
5 years may be nothing to you, but it's not set in stone.
An Ex has no say in the relationship or the pace it moves at. Considering she was 1 year old when they split up..the child doesn't know any different.
The sabotage in this case is plain old nasty...and her actions show she's treating the child like property...hence the word ownership.
She doesn't have to be happy...but this just makes her look bitter and jealous. They aren't nice qualities in anyone.
Oh and btw ... I speak objectively. I'm not a SM.