An uncle slapped me at rajiv chowk metro sttn

So today I went on a date with my gf and we had to say goodbye as we were changing routes at Rajiv chowk I hugged her for a min as we won't be meeting for a while now but suddenly I felt a tap on my shoulder and the second I turned around a slap right across my cheek I was stunned, that wasn't a hard slap as it grazed of my cheek but suddenly that man after a sec started shouting and screaming "ye meri beti ke sath gande samvandh Banaya hai meri zindagi barbaad krdia hai is mc ne" before I ofc grabbed his collar and pushed him but before the situation could escalate crowd gathered pulling me back after a min an officer or wtv u call them who are present on the sttn came and asked me what happened while I told them exactly what happened he just told me "pagal hai aadmi jaane do" and my girlfriend pulled me away stopping me from making a scene and I left after a few mins after i saw that man get taken away while shoutikg all sort of slurs