Yes, twice.
We got engaged about 1 year after we started dating but he was ready to be engaged 2 weeks into the relationship. He was 5 years older than me and definitely ready to settle down.
No big fights to cause the return though, just not ready or sure.
I had dated the guy before him for 4 years and while he asked several times for me to marry him, I didn't want to marry him. Which was why we ended up breaking up after 4 years. He and I dated all that time and never have a fight--although I was a bit "Kate-ish" and he was bit "Jon-ish".
When I do something that gets on DH's nerves or whatever, I often say, "Well, you asked...3x."
Honestly, as crazy as it drove everyone who knew me and as much as everyone seemed to be trying to stick their noses into my business and lovelife back then, I am glad I did what I did. It was hard back then to do it though. Giving him his ring back 2x was very stressful, heartbreaking and just hard.
It was a big decision to me to marry him. I was not taking it lightly and I'd had 3 other proposals and I just wanted to be sure he was
the one.
Ugh. I wouldn't go back to that time in my life for anything!
On the day of the wedding, my soon to be FIL took me aside and asked me if I was sure. His oldest was divorced and I think he was a bit fearful that it would happen in his family again--esp. since I'd been so wishy-washy so far.

I am sure they were all wondering if I'd show up the day of the wedding or if I'd be a runaway bride!
But 22 years later with no separations, no threats of divorce, we are still together, happy as clams. I just had to make sure.
BTW, my mom gave us 3 years and our bestman gave us 5. I think 5 was the longest anyone in attendance may have been giving us! I found out several years after the wedding that my mom and bestman had this conversation before we said "I do".
