A guy sent me a friend request on facebook?

[Emma]

Just before valentines day, this stranger sent me a friend request on facebook, I accept it to be nice.
And on valentines day he said happy valentines day emma, that was so nice, now ever since then this guy wants to talk to me, and I don't even know him, first he told me that he's friend knows me, and add me from his account, but that was bull, because then he changed the story and said, Emma it was just random, but I think your gorgeous and I really wanna talk to you.


On a another note I asked this guy how old are you, he said he was 15 years old, and I am 20 years old, I can not be talking or going to talk to a 15 year old boy, thats wrong, and this whole thing is just plane werid, what do you guys think?