Celebrities reveal their biggest relationship regrets

Regrets—we all have them. There's always something we wish we would have done differently. When it comes to relationships, these regrets can haunt us for some time, but we can also learn from our mistakes and use them as a catalyst for change, for better relationships in the future.
Celebrities also have their breakups and makeups, and even they regret some things they've said or done in the past. Whether they let that special someone get away, or ended up cheating, there are many famous people who still regret their actions to this day.
The actress's biggest relationship regret is dating Will Smith while he was still married.