mommy pls help

Being little selfish or harmonal, I don't know but I want my baby to be with me and recognize me rather going easily and happily to every other person.
It becomes very difficult when everyone wants to hold your baby whether they have hygiene or not. And to top it all your baby easily goes to them without even missing mom for once.
Yesterday I met this close friend really sticky and dirty n holding my baby like a doll and wants to continuously play.
I am becoming a obsessive or mad or bad person but I am helpless. My baby is just 4 mo and I am worried.
What should I do so that my baby kind of become reluctant to go to others or at least want to come back to me😔😔😔I am full day take no care of him.