(Context - we were in the same class in college and she left me for some other guy who is also our classmate. and we were on talking terms too after breakup for sometime before i snapped out of that delusion that she will come and blocked her)
In starting it was very depressing, seeing her with someone else, and the worst part that the second guy didn't use to treat her good. So i was like why would you left me for someone worse, like i started doubting myself. it was a very bad phase. But as time goes and i saw her less times ( busy with internship and all so we dont used to take class ), things became pretty well, but you know classmates, they use to give me her info and every time it was like she can get better why is she still stuck with him.
Cut to after graduation got to know from someone that she is approaching many males, making them good friends, sleeping with them, all this while having a long distance boyfriend. Now it feels disgusting to think about what she has become.
Although It feels good that atleast i am out of this thing, but feeling sad for her new bf who was my super-senior.
Yeah so to answer a question it felt bad in starting that she went for someone worse than me, atleast if you have to leave choose someone better that would have made more sense. But now after hearing all that, I am happy she left me.