Out for a late night jog

So I normally go for runs when I'm very stressed and there is a park near my home that I normally run through. well I decided to go on a run last night, as I've been going through some things with my husband. I had my head phones on and I stopped to catch my breath the song was changing and I heard a twig break, so I turned around and started screaming really loudly (idk y I guess just my natural reaction) and this man was close behind me and he just yelled I'm sorry and took off running in the opposite direction. I was laughing like oh I'm sorry you just scared me but he was gone so I headed back to go home. I kept turning around though. I was uneasy (which isn't like me) it felt like someone was watching me but idk I think I was just being paranoid. I thought maybe I scared him so he ran......well I told my sister about it and she wants me to promise not to run through the park any more, but living inner city there isn't many good places close by to get a good run. Am I just being paranoid or should I really stop running through the park? Just as a note I normally run in the park at night she thinks that he's been watching me and decided to act that night and when I screamed I scared him off but idk I was thinking he probably just didn't want someone else to think he was doing something to me while he was just enjoying a stroll through the park. Which is why I said "I'm sorry" thoughts?