Emotional matters themselves cannot be explained clearly in one or two sentences. First give you a warm hug.
When a relationship ends non-subjectively, it is really sad. In fact, many people would say that incompatible horoscopes are superstitious. But superstition often affects people's minds and makes people easy to associate.
Parents’ ideas may not be scientific enough, but the starting point is out of love for you, so there is no way to completely ignore them.
If you have ended this relationship, then you can only move forward and do something to divert your attention. Make yourself feel better.
As for the ex-boyfriend, since he is already an ex-boyfriend. So look forward, don't look back. I hope that he will be safe for the rest of his life and that he will enter a new life as soon as possible.
Come on, you strange little cutie.