need advice on what my dua being answered means

[NishatUddin]

I made dua for negative people/those who are not meant to be in my life to exit/be removed from my life and two days later someone who I was getting to know for the purpose of marriage was removed.I was missing this person so made dua for them to return only if it was meant to be/we would have a happy marriage otherwise if it’s not meant to be then to keep that person away from me. This person then re-entered my life but they are like a different person from how they were in the beginning and their true intentions/true colours are horrible.What does this mean?

 

[Supernova]

Asalaamualaykum

You need to sit with an Aalima and get her to teach you about Dua in its fullest understanding.
It's too long to discuss here. Verbally would be the best.