<human>: Summarize the given text in a few sentences.

I have this neighbor in his 50s who lives across the street from me. He divorced his wife and for some reason his son has never come home after going to college a couple years back. I literally never saw the son again after he left for college. He seemed eccentric, but harmless. The Christmas before last, he came over with gifts. After he left, we opened them and realized they weren't for the family, but instead all just for me. We brushed it off as odd, but the Valentine's day after that, I was home alone when I heard a knock on the door. I assumed my family members had just forgotten their garage door opener. I opened the door and it was the guy from across the street. He had roses, a gift, and a card. He asked if my parents were home, and I told him they'd probably be home any second and he promptly left. Later, my parents opened the card and it said "Dear JXiaty, Thinking of you always. Happy Valentines Day." My parents flipped out of course and went to talk to him. Since then, I've seen him a couple of times outside his house, but he hasn't tried anything. Lately I've been seeing him more an more. Should I be worried?
<bot>: My neighbor brings me Christmas and Valentines day gifts. He's a 50 year old man who lives by himself and I'm a minor living with my family.