Once upon a time, there lived a cute couple who weren't married but wanted to marry so they would enact as couples until the day of their marriage. Though there came an incident when the couple broke up a week before their marriage date eventually ruining the timeline. Hence the time traveler went back in time to fix the timeline but found out that the couple broke up because the in the past another time traveler fell in love with the girl and sought some seeds of hatred between the couple which eventually led into the breakup.
however it seemed the time traveler wanted to get them back so he tried putting them back just to realize that another time traveler from the third timeline came to fix the timeline since the time traveler from the second timeline took too long to fix the issue, hence therefore ruining the actual timeline yet again. The third time traveler however went ahead and fixed the timeline but since second time traveler wanted to fix the timeline too but as the timeline was now fixed, his existence in the past was merely extra which laid to imbalance of matter in the past timelines leading to no present or future. How do you think this could be fixed ?