Am I being to sensitive?

Hi I work in a department store and there’s a care taker who works the who is 30 years older than me we got talking when I used to go for cigarette breaks one day he said iv to tell you something private please follow me to my office I said my break is nearly over he said oh but please follow me to my office so I did and then he told me a horrible story about his child hood I thought nothing of it left and went back to work I meet him outside again a few days later and he called me over to the side of the building and said you do know this is the only place in the building there’s no cameras I left quickly and said iv to go to work but then the other day I was parked in my car and he just opened the door and sat In beside me and never asked for my permission to enter and said the only reason I’m with my wife is for the kids I don’t love her gave me a hug I felt shocked and said iv to go so I opened my door and hopped out of my own car he’s old enough to be my dad an I over reacting or should I tell someone thank you