There is gonna become a day when freedom and content becomes boring. There is going to be times when you are weak and think about losses. When that day comes (if it has not already came), remember why you parted in the first place. Remember all the struggles and the heartbreaks you had gone through, and ask yourself to not idealize the past. Reminiscing the past is romantic and not at all wrong, but through that reminiscing, what you get should not be regret or grieve, but relief, the relief that you are out of this hell and able to idealize it, and the vigilance to not let the same thing happen again.