His feeling about the child had been negative from her birth.

Start listening to your thoughts. Start writing a journal about yourself, and about the thoughts you have about yourself, and analyzing why you have such negative thoughts.

It is negative. His long-lost son is not his son after all.

If you start to get upset, let go of the negative thought, deal with the problem - and then let go of that.

As an academic psychologist, I know that people have different temperaments, and if we are prevented from coping in our own way, be it "positive" or "negative, " we function less well.