Talking to a guy

So recently I’ve been talking to a guy and i kinda started to like him. It didn’t really occur to me to ask his age until today and he said he’s 15 I’m 17 and I’m gonna turn 18 in a couple months. He’ll turn 16 soon but I don’t know how I feel about it. I feel kinda weird about it that he’s that much younger than me but also I kinda like him I don’t know it’s confusing please help.