but mom, he followed me home

I've been going for a walk at the park in the afternoons after work with my older sister. We always see this one guy, pretty cute young latino, running the opposite direction as us, so we ocassionally pass him and we face each other. We always make eye contact but I'm so uncomfortable with direct eye contact that I always turn down or away. Anyways, the point is we see each other. So 2 days ago, as we left the park area and walked home, we see that same guy standing on the street ahead of us facing our direction. He sees us, does a stretch and turns and begins to walk forward. We dont stop so we are walking behind him and talking pretty loudly. We only live 4 blocks away, and about half way there, either he slows down to listen to our convo or he wanted us to pass him. We dont slow down so we end up passing him up and now he is the one following us. Perhaps he just wanted to check us out from behind IDK LOL. Another block, and he is still behind us a few yards away. We continue to walk and turn onto our street and yup he's still there. I kinda wanted to go into a neighbors yard until he passed so he didn't know where I lived, but noo my sister walked right into my driveway and I had to follow. So now this cute stranger knows where we live. He kept walking down the road but I didnt see where he ended up. We saw him running again yesterday, again we passed by him on the path and there was eye contact but no expression on his face to make we wierd out. No he didnt follow us home yesterday. He's probably harmless but I'm gonna be making sure I lock my doors everynight now. I guess I'm just paranoid.