I met my exBPDh of 10 years when I was on vacation. We kept in touch after that first weekend and about 8 weeks later, I went back to see him. He proposed. I said yes. I'd never felt like that before. I thought he was 'the one'. He pushed to get married after about 3 months, but I insisted we wait a year.
Now, he is from a different culture and fast marriages are more normal, so I know it's super-fast, but it didn't feel quite so insane as it sounds now that I'm typing it.

The day before we got married, he kicked off and caused a drama, completely ruining my hen night (which was a night with some close friends at home, rather than some 'girls gone wild' crazy thing, fwiw).
I spent the morning of my wedding questioning if I was doing the right thing. I did it anyway.
With hindsight, I wish I hadn't.
Honestly - being married was something I took extremely seriously. I committed to better or worse. Most of it was worse.
Being married simply prolonged the agony and increased the disorder of our marriage. Had I not married him, I like to think I would have seen sense and got out a hell of a lot sooner.
Aren't you glad you didn't feel tied to doing that crazy stuff out of a sense of obligation to your morals and values? That's what marriage gave me.
I lost a decade of my life to that craziness.