Justin Bieber and Hailey Bieber: 6 months
Although this couple embarked on a short-lived relationship between 2015 and 2016, which ended in a breakup, they did so on amicable terms. They got back together 2 years later in May 2018. They confirmed their engagement in July of the same year after only a few months of dating. During the month of November, Justin Bieber confirmed on social media that they were already married.
Well said and isn't it ironic how they posted Nikki Reed in two different marriages. We've all seen how long these things last or rather how long it takes them to implode. I'm vaguely aware of celebs, but I make it a point to not learn anything. Every time I do I lose any modicum of respect I had for their talents and their work becomes unwatchable.