Is there a chance he likes me?

There's this guy I really like, but I've known him really well for 6 years. We're both 14, and just a few nights ago, he spent the night on my boat with a few of my other friends, and he could have slept anywhere but he chose to sleep on the same bench as me (which was the smallest bench on my boat). I really like him but I think he just likes me like a sister (we aren't actually related, just using that figuratively). He also stayed an hour after his mom got there to pick him up so I wasn't alone. Does he like like me or...Just like me like a sister?!