Be satisfied with what you gave and did, never be regreted

In any relationship there is one side that gives and sacrifies more, this person most of the time is the one that gets dumped, it hurts, it feels like you want to die, in between reflection moments just think, how many good and lovely things you did amd how much you gave and be satisfied, you have nothing to miss or regret about, he/she will miss all of the good things he lost, and you have nothing to miss.
Good luck and think deeply.